heatmiser Slimline-RF V3 Programmable Wireless Thermostat
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Contents hide
1What is a Programmable Room Thermostat?
2Installation Procedure
3Installing the Batteries
4Replacing the Batteries
5Receiver Type
6Pairing Menu Explained
7Pairing Menu
8Pairing with the UH8-RF V2 Wiring Centre
9Pairing With the UH8-RF Wiring Centre
10Pairing With the RF-Switch V2
11Pairing With the RF-Switch
11.1Pairing With the RF-Switch 16 Amp
12LCD Display
13Setting the Clock
14Temperature Display
15Comfort Levels Explained
16Setting the Hot Water Switching Times
17Locking the Thermostat
18Temperature Control
19Temperature Hold
20Holiday
21Hot Water Override
22Frost Mode
23Heating On/Off
24Re-calibrating the Thermostat
25Factory Reset
26Optional Features Explained
27Adjusting the Optional Settings
28Optional Settings – Feature Table
29Documents / Resources
29.1References
30Related Posts
What is a Programmable Room Thermostat?
A programmable room thermostat is both a programmer and a room thermostat.
The programmer allows you to set “On” and “Setback” periods to suit your own lifestyle. The room thermostat works by sensing the air temperature, switching on the heating when the air temperature falls below the thermostat setting, and switching it off once this set temperature has been reached.
So a programmable room thermostat lets you choose what times you want the heating to be on, and what temperature it should reach while it is on. It will allow you to select different temperatures in your home at different times of the day (and days of the week) to meet your particular needs and preferences.
Setting a room thermostat to a higher temperature will not make the room heat up any faster. How quickly the room heats up depends on the design & size of the heating system.
Similarly reducing the temperature setting does not affect how quickly the room cools down. Setting a programmable room thermostat to a lower temperature will result in the room being controlled at a lower temperature, and saves energy.
The way to set and use your programmable room thermostat is to find the lowest temperature settings that you are comfortable with at the different times you have chosen, and then leave it alone to do its job.
Installation Procedure
Do
Mount the thermostat at eye level. Read the instructions fully so you get the best from our product.
Don’t
Do not install near to a direct heat source as this will affect functionality. Do not push hard on the LCD screen as this may cause irreparable damage.
Room thermostats need a free flow of air to sense the temperature, so they must not be covered by curtains or blocked by furniture. Nearby electric fires, televisions, wall or table lamps may also prevent the thermostat from working properly.
This wireless thermostat is designed to be surface mounted.
Step 1
Carefully separate the front half of the thermostat from the back plate by placing a small flat head terminal driver into the slots on the bottom face of the thermostat.
Step 2
Mark 2 hole positions on the wall using the backplate as a positioning template. Drill at the marked positions and insert a wall plug into each hole.
Step 3
Screw the thermostat back plate securely on the wall.
Step 4
Clip the front of the thermostat back onto the thermostat back plate.
Installing the Batteries
2x AAA batteries have been supplied with this thermostat.
To access the battery holder, push and release the compartment door located on the bottom face of the thermostat. The thermostat will inform you when the batteries need to be replaced by displaying the battery icon on screen. Do NOT use rechargeable batteries with this product!
Insert the batteries in the empty battery holder, ensuring that each battery is orientated for the correct polarity + / – .
Push the battery holder back inside the thermostat until it is secured in its closed position.
Replacing the Batteries
Batteries have a fixed lifespan and will need to be replaced occasionally to ensure the thermostat operates correctly.
The thermostat will inform you when the batteries need to be replaced by displaying the battery icon on screen.
Note: You must replace the batteries within 1 minute of removal in order to retain the current clock and comfort level settings.
Receiver Type
Slimline-RF V3 will send a wireless signal to a receiver to switch on the heating or hot water. Select the receiver type you are using from the list shown here on pages 9 & 10, and follow the pairing instructions on the relevant page.
To control heating only, configure feature 10 on the Slimline-RF to mode 00 or 01. To control heating & hot water, configure feature 10 to mode 02, (see page 34).
UH8-RF V2
Page 12
Pairing Menu Explained
Feature P1 – Pairing: to the RF-Switch V1 & V2, RF-Switch 16 Amp & UH8-RF V2. Feature P2 – Setting the UH8-RF address: This is the number set on the rotary dials inside the UH8-RF unit, the zone number & zone type. Feature P3 – Failsafe: If the receiver fails to receive a signal from the Slimline-RF V3 within a 40 minute period, it will activate the output for 12 minutes every hour. The receiver will continue to do this until it receives a signal from the Slimline-RF V3.
Pairing Menu
| FEATURE | DESCRIPTION | SETTING |
| P1 | Pairing to RF-Switch 1&2 & UH8-RF V2 | Commences countdown from 99 – 00 seconds. |
| P2 | Pairing to UH8-RF | 00 – 99 = Receiver address/zone no. & type. |
| P3 | Failsafe | 00 = Disabled 01 = Enabled (Default) |
- Turn Off the thermostat by, holding down the Power button for 3 seconds……………..
- Now hold down the H button for 3 seconds unit you see P1 in the top right hand corner of the display…………………………………………………………………………………………………………..
- Repeatedly press Clock to select the desired P1, P2 or P3 setup pages…………………….
Pairing with the UH8-RF V2 Wiring Centre
Note: You can pair the Slimline-RF V3 to multiple channels on the UH8-RF V2.
Step 1, On the UH8-RF V2:
- Press and hold the pairing button on the desired channel until the output indicator LED flashes. Pairing mode is now active on the UH8-RF V2.
Once the UH8-RF V2 detects the pairing signal from the Slimline-RF V3 the output light will turn off.
Step 2, On the Slimline-RF V3:
- Turn Off the thermostat by, holding down the Power button for 3 seconds………..
- Now hold down the H button for 3 seconds unit you see P1 in the top right hand corner of the display…………………………………………………………………………………………………….
- Tap the H button once while P1 is shown to start a 99 second countdown………..
- During the countdown the thermostat will transmit a signal and flash the RF icon at the top left hand corner of the display…………………………………………………………..
If pairing is successful, the countdown will jump straight to 00 followed by a blank screen. - Press the Power button on the thermostat once to turn the unit back On…………..
- If in mode 02, the hot water timer will automatically be paired to the HW channel.
If pairing is unsuccessful, eliminate a possible signal issue by repositioning the thermostat closer to the receiver and repeat the pairing process again.
Pairing With the UH8-RF Wiring Centre
Step 1, On the UH8-RF
Take note of the numbers set on the rotary switches (UH8-RF ID numbers 01-99). Each UH8-RF on the system needs to have a different ID number.
Set your first UH8-RF to 01
Example: Rotary Switch showing ID No. 99. 
Step 2, On the Slimline-RF V3
- Turn Off the thermostat by, holding down the Power button for 3 seconds……………..
- Now hold down the H button for 3 seconds unit you see P1 in the top right hand corner of the display……………………………………
- Press the Clock button once to change P1 to P2 on the display………………………………….
- Press the H button once to enter P2 settings………………………………………………………………….
- Use the Up/Down keys to change the large digits to match the Rotary Switch on the UH8-RF followed by H………………………………………..
- Use the Up/Down keys to change the small digits (top right) to select a
Zone number on the UH8-RF, followed by H………………………………………………….. - Use the Up/Down keys to select either “rA” for radiator zone or “UF” for underfloor heating, followed by A to store configuration……………….
- Press the Power button on the thermostat once to turn the unit back On………………….
- If in mode 02, the hot water timer will automatically be paired to the HW channel.
Pairing With the RF-Switch V2
Step 1, On the RF-Switch V2:
- Press and hold the CH1 or CH2 button for 5 seconds, the CH1/2 light will start flashing,and pairing mode is now active on the RF-Switch V2.
Once the RF-Switch V2 detects the pairing signal from the Slimline-RF V3, the CH1/2 light will turn off.
Step 2, On the Slimline-RF V3
- Turn Off the thermostat by, holding down the Power button for 3 seconds………..
- Now hold down the H button for 3 seconds unit you see P1 in the top right hand corner of the display………………………………..
- Tap H button once while P1 is shown to start a 99 second countdown……………….
- During the countdown the thermostat will transmit a signal and flash the RF icon at the top left hand corner of the display…………………………
- If pairing is successful, the countdown will jump straight to 00 followed by a blank screen.
- Press the Power button on the thermostat once to turn the unit back On…………..
- If in mode 02, the hot water timer will automatically be paired to the HW channel.
If pairing is unsuccessful, eliminate a possible signal issue by repositioning the thermostat closer to the receiver and repeat the pairing process again.
Pairing With the RF-Switch
Step 1, On the RF-Switch:
- Press and hold the CH1 button for 5 seconds, the CH1 light will start flashing and pairing mode is now active on the RF-Switch.
Once the RF-Switch detects the pairing signal from the Slimline-RF V3, the CH1 light will turn off.
Step 2, On the Slimline-RF V3
- Turn Off the thermostat by, holding down the Power button for 3 seconds………..
- Now hold down the H button for 3 seconds unit you see P1 in the top right hand corner of the display……………………………………..
- Tap H button once while P1 is shown to start a 99 second countdown……………….
- During the countdown the thermostat will transmit a signal and flash the RF icon at the top left hand corner of the display………………………………….
If pairing is successful, the countdown will jump straight to 00 followed by a blank screen. - Press the Power button on the thermostat once to turn the unit back On…………..
If in mode 02, the hot water timer will automatically be paired to the HW channel.
If pairing is unsuccessful, eliminate a possible signal issue by repositioning the thermostat closer to the receiver and repeat the pairing process again.
Pairing With the RF-Switch 16 Amp
Feature 10 Mode 02 not suitable for RF-Switch 16 Amp unit.
Step 1, On the RF-Switch 16 Amp:
· Press and hold the Pair button for 5 seconds, the Pair light will start flashing and pairing mode is now active on the RF-Switch.
Once the RF-Switch detects the pairing signal from the Slimline-RF V3, the Pair light will turn off.
Step 2, On the Slimline-RF V3
- Turn Off the thermostat by, holding down the Power button for 3 seconds………..
- Now hold down the H button for 3 seconds unit you see P1 in the top right hand corner of the display………………………………..
- Tap H button once while P1 is shown to start a 99 second countdown……………….
- During the countdown the thermostat will transmit a signal and flash the RF icon at the top left hand corner of the display……………………………….
If pairing is successful, the countdown will jump straight to 00 followed by a blank screen. - Press the Power button on the thermostat once to turn the unit back On…………..
If pairing is unsuccessful, eliminate a possible signal issue by repositioning the thermostat closer to the receiver and repeat the pairing process again.
LCD Display
- RF Icon – Flashes when the thermostat communicates with the receiver.
- Day Indicator – Displays the current day.
- Frost Icon – Displayed when the thermostat is in frost protection mode.
- Flame Icon – Displayed when the thermostat is calling for heat, flashes when the Optimum Start function is in operation.
- Temperature Hold – Displayed when manually overriding the program, “HOLD FOR” and the time period are displayed.
- Room Temp – Indicates the current temperature sensor mode.
- Set – Displayed when changes are made to programs or temperature set points.
- Holiday Indicator – Displayed when the programmer is in holiday mode.
- Current Temp – Indicates the current sensor temperature.
- Program Cycle Indicator – Displayed during programming only to show which period is being altered.
- Battery Level – Indicates when the batteries require replacement.
- Keypad Lock Indicator – Displayed when the keypad is locked.
- Timer Status Displays the current state of the timed output.
- Units of Temperature – Degrees Celsius or Fahrenheit.
- Clock – Digital clock display in 24h format.
Setting the Clock
To set the clock, follow these steps.
- With the thermostat turned ON, press the Clock key twice*……………………………..
- Use the Up/Down keys to set the hours …………………………………………………….
- Press H to confirm settings …………………………………………………………………………………..
- Use the Up/Down keys to set the minutes ………………………………………………..
- Press H to confirm settings ………………………………………………………………………………….
- Use the Up/Down keys to set the day of the week ………………………………….
- Press A to confirm settings and return to main display ……………………………………
Note: When configured in programmable with hot water control (Feature 10=02), press the clock key 3 times to enter clock setting screen.
Temperature Display
The temperature display information is driven by two different inputs; the sensor measurement and the target temperature you have set.
This is the current room temperature.
This is the temperature you are trying to achieve in your home.
Comfort Levels Explained
The thermostat provides Weekday/Weekend or 7 Day Programming options. You should consult the “Optional Features” section to select the required mode.
The thermostat is supplied with comfort levels already programmed, but these can be changed easily. The default times and temperatures are;
08.00 – 21°C (Wake) 09.30 – 16°C (Leave) 16.30 – 22°C (Return) 23.00 – 17°C (Sleep)
If you only want to use 2 levels, you should program the unused levels to –.–
Note: For Weekday/Weekend programming, the 4 comfort levels are the same for all weekdays but can be different for the weekends.
For 7 Day programming, each day can have 4 different comfort levels.
- To program comfort levels, press the Clock key once …………………………………………..
For Weekday/Weekend programming, Mon Tue Wed Thu Fri are displayed on screen.
For 7 Day programming,only Mon is displayed in the day indicator field. - Use the Up/Down keys to enter the required WAKE time …………………
- Press H to confirm settings …………………………………………………………………
- Use the Up/Down keys to enter the required WAKE temperature …….
- Press H to confirm settings …………………………………………………………………
- You will now see “LEAVE” displayed on screen.
- Repeat the programming steps for each period until complete.
- For unused periods enter –.– and the thermostat will ignore the setting.
- Press A to confirm settings and return to main display ………………………..
Note: - In 7 Day programming mode you can repeat for each day independently.
- In Weekday/Weekend programming mode you will see Sat Sun displayed on screen and can repeat for the weekend.
- To change the programming mode please refer to pages 33 & 34.
Setting the Hot Water Switching Times
- Press the Clock key twice* ………………………………………………………………………………….
- If your thermostat is setup for Weekday/Weekend programming, Mon-Fri will be displayed on screen. For 7 day programming Mon will be displayed on screen.
- Using the Up/Down keys, enter the required start time for Hot Water Time 1 …………………………………………………
- Press H to confirm settings ………………………………………………………………………………
- Use the Up/Down keys, enter the required end time for Hot Water Time 1 ……………………………………………………….
- Press H to confirm settings ……………………………………………………………
- Repeat the programming steps for each switching time, entering –.– for any unused periods.
*Note: Only applicable when configured in programmable with hot water control (Feature 10=02).
Locking the Thermostat
The thermostat has a keypad lock facility. To activate the lock follow these steps.
- Press and hold the A and Down keys together for 10 seconds ………
- You will see the lock symbol appear on screen ……………………………….
- To unlock, repeat the steps above until the lock symbol disappears.
Note: The keypad lock indicator is only displayed when the lock is active.
Temperature Control
The Up/Down keys allow you to adjust the set temperature …………………. 
When you press either key, you will see the word SET and the desired temperature will be displayed on screen. Use the Up/Down keys to adjust the SET value …………………………..
Press A to confirm settings and return to main display …………………………….
Note: This override will be maintained until the next programmed comfort level.
Temperature Hold
The temperature hold function allows you to manually override the current operating program and set a different temperature for a desired period.
- Press H to commence temperature hold …………………………………………………
- Use the Up/Down keys to enter the required Hold time………………………..
- Press H to confirm settings …………………………………………………………………….
- Use the Up/Down keys to enter the required Hold temperature……………..
- Press A to confirm settings and return to main display …………………………..
You will see the Hold For indication is displayed on screen. The time will countdown the set duration and then revert to the normal program.
To cancel temperature hold, follow the same steps but reduce the Hold time to 00:00 hours.
Holiday
The holiday function reduces the set temperature in your home to the frost protection temperature setting (see page 29).
The thermostat will maintain this temperature for the duration of the holiday and will then automatically return to the program schedule on your return.
- Press H three times (until you see the suitcase on screen) ……………………………
- Use the Up/Down keys to enter the number of days holiday ……………………….
- Press A to confirm settings and return to main display ………………………………..
The display will show a suitcase indicating the thermostat is in holiday mode. Note: A holiday period does not start until 00:00 the next day. For example, if you set a holiday period on Friday for 2 days, Saturday will be counted as the first day and the thermostat will revert back to the programmed schedule at 00:00 on Monday.
To cancel, follow the same steps but reduce the Holiday duration to 00 days.
Hot Water Override
You can override the hot water override by pressing the key. If the hot water is OFF, pressing the key will switch the hot water ON and similarly pressing the key when the hot water is ON will switch it OFF. Timer ON or OFF will flash to show when the hot water has been overridden. This override will last until the next programmed setting.
Frost Mode
Pressing the Power button once will place the thermostat in Frost Protect mode. In this mode, the thermostat will display the frost icon and will only turn the heating on should the room temperature drop below the set frost temperature.
Setting the frost temperature
- Press the Power button once to enter frost mode……………………………………………
- Use the Up/Down keys followed by the A button to select and store a frost temperature………………………………………………………………………..
Selectable frost range 7°C to 17°C
Should the heating enable whilst in frost mode, the flame icon will be displayed. To cancel the frost protect mode, press the Power button once again………………..
Heating On/Off
The heating is indicated ON when the flame icon is displayed.
When the flame icon is absent, there is no requirement for heating to achieve the set temperature but the thermostat remains active.
To turn the thermostat OFF completely, press and hold the Power button…………………
The display and heating output will be turned OFF completely provided Frost Protection is disabled. (See pages 31 – 34).
Press the Power button once to turn the thermostat back ON ……………………………………
Re-calibrating the Thermostat
If you need to re-calibrate the thermostat, follow these steps.
- Press and hold the Power button to turn the thermostat OFF ………………..
- Press and hold BOTH the Power and Down keys together until the temperature appears on the screen ……………………………………..
- Use the Up/Down keys to configure the new temperature ………………………
- Press A to confirm settings ………………………………………………………………………
- Press the Power button once to turn the thermostat back ON …………………
Factory Reset
The thermostat has a reset function to restore all settings to their factory defaults.
To perform a factory reset, follow these steps.
- Press and hold the Power button to turn the thermostat OFF …………………….
- Press and hold the Power and Up keys together until the LCD powers up. All of the icons will be displayed on screen ………………….
- When the icons have disappeared from the screen, the thermostat has been successfully reset.
- Press the Power button once to turn the thermostat back ON …………………….
Optional Features Explained
Feature 01 – Temperature Format: This function allows you to select between °C and °F.
Feature 02 Switching Differential: This function allows you to increase the switching differential of the thermostat. The default is 1°C which means that with a set temperature of 20°C, the thermostat will switch the heating on at 19°C and off at 20°C. With a 2°C differential, the heating will switch on at 18°C and off at 20°C.
Feature 03 Frost Protect: You can set whether the thermostat will maintain the frost temperature when the thermostat display is turned off. As a default, this is enabled.
Feature 04 Output Delay: To prevent rapid switching, and output delay can be entered. This can be set from 00 – 15 minutes. The default is 00 which means there is no delay.
Feature 05 Temperature Up/Down Limit: This function allows you to limit the use of the up and down keys. This limit is also applicable when the thermostat is locked and so allows you to give others limited control over the heating system.
Feature 06 Air Sensor Selection: On this thermostat, you can select which sensor should be used – built in sensor or remote air sensor.
Feature 07 Optimum Start: Optimum start will delay the start up of the heating system to the latest possible moment to avoid unnecessary heating and ensure the building is warm at the programmed time. The thermostat uses the rate of change information to calculate how long the heating needs to raise the building temperature 1°C (with a rate of change of 20, the thermostat has calculated the heating needs 20 minutes to raise the building temperature 1°C) and starts the heating accordingly.
Feature 08 Rate of Change: For information only.
Feature 09 Program Mode: The following program modes are available; 5/2 Day Programming 4 levels for the weekdays and 4 different levels for the weekend. 7 Day Programming 4 levels for each day. 24 Hours 4 levels over a 24-hour period.
Feature 10 Thermostat Mode: Here you can set in which mode you would like the thermostat to operate. The options are, manual (non-programmable), programmable, or programmable with hot water time clock.
Adjusting the Optional Settings
To adjust the optional settings, follow these steps.
- Press and hold the Power button to turn the thermostat OFF …………………….
- Press and hold the Clock key until the display appears as shown below ………
- Use the Clock key to cycle through the features ………………………………………..
- Use the Up/Down keys to change the setting ……………………………………………
- Press A to confirm settings ……………………………………………………………………….
- Press the Power button once again to turn the thermostat back ON ………..
Optional Settings – Feature Table
| FEATURE | DESCRIPTION | SETTING |
| 1 | Temperature Format | 00 = °C, 01 = °F (°C = Default |
2 | Switching Dierential | 01° – 03°C (01°C = Default) |
3 | Frost Mode | 00 = Disabled, 01 = Enabled (01 = Default) |
4 | Output Delay | 00 – 15 Minutes (00 = Default) |
5 | Up/Down Limit | 00° – 10°C (00°C = Default) |
6 | Sensor Selection | 00 = Built in Air, 01 = Remote Air |
7 | Preheat Setting | 00 = Built in Air, 01 = Remote Air |
8 | Rate of Change | Minute to raise 1°C |
9 | Program Mode | 00 = 5/2 Day, 01 = 7 Day (00 = default) 02 = 24 Hours |
10 | Thermostat Mode | 00 = Manual, 01 = Programmable, 02 = Programmable + Hot Water |
Want More Information?
Call our support team on: +44 (0)1254 669090
Or view technical speciifcations directly on our website:
www.heatmiser.com
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Documents / Resources
| heatmiser Slimline-RF V3 Programmable Wireless Thermostat [pdf] Instructions Slimline-RF V3, Programmable Wireless Thermostat, Wireless Thermostat, Programmable Thermostat, Slimline-RF V3, Thermostat |
References
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FAQs
How do I operate my thermostat? ›
Depending on your model of thermostat, you will likely either have a small switch on the thermostat's faceplate or a cycle button to cycle between heating, cooling, and off options. You can prep the system to cool the home by moving the switch or pressing the button until you reach the “cool” setting.
What are the best temperature settings for thermostat? ›Energy.gov suggests that 68 degrees is a good room temperature while you're awake at home but recommends lowering it while you're asleep or away. Lowering your thermostat 7-10 degrees for eight hours a day can reduce your annual heating expenses by as much as 10 percent.
What should underfloor heating thermostat be set at? ›Electric underfloor heating systems can reach higher temperatures than hydronic (wet) systems but for both types of systems, a thermostat setting of between 21°C and 25°C is usually ideal. To achieve these temperatures, the actual heat output from the underfloor heating system will be approximately twice that number.
What is the default setting for Heatmiser? ›The default times and temperature settings are; 07:00 - 21°C (Wake) 09:00 - 16°C (Leave) 16:00 - 21°C (Return) 22:00 - 16°C (Sleep) If you only want to use 2 levels, you should program the unused levels to --:-- For Weekday/Weekend programming, the four comfort levels are the same for Mon-Fri, but can be different for ...
Why isn't my underfloor heating working? ›Trapped air is the most common problem with a malfunctioning underfloor heating system, especially one that uses hot water flowing through sub-floor pipe work. Air can get caught up in the pipe and stay there, causing issues with the whole system.
How long does Heatmiser take to heat up? ›We suggest 3 hours for most homes.
Should the thermostat be on auto or on? ›Keeping your thermostat in the AUTO position means less overall energy is being used—and that reduces your utility bills considerably. Not only that, your air filter will last longer than they will if you leave your fan running continuously—in other words, if you leave it in the “on” position.
How does a thermostat work for dummies? ›Mechanical thermostats regulate heat thanks to the expansion of their internal metallic strips. This strip carries electricity through the connected circuit, switching on the heating. As the strip heats up, one of the metals expands enough to open the circuit and switch off the heating, cooling the room down.
Is 72 a good temperature for heat in the winter? ›Day Time Temperature Setting
The lower the temperature is inside of the home, the slower the rate of thermal energy loss. To achieve optimal comfort, it is recommended for homeowners to set their thermostats between 68 to 72 degrees while there are people inside of the home.
The temperature hold function allows you to manually override the current operating program and set a different temperature for a desired period.
What is the default password for Heatmiser WiFi thermostat? ›
Tierney discovered that when users connect the thermostat via a Windows utility it uses default usernames and PINs ("admin” with an access PIN of “1234”). When logged into one of the devices, the thermostat reveals Wi-Fi login credentials (password and username) and Service Set Identifier (SSID).
Is 62 too cold for a house? ›The World Health Organization (WHO) recommends indoor temperatures of at least 64°F (you can drop that down to 62°F at night if you're really looking to save on your heating bill). But if you have infants, sick or elderly people in your household, then it's recommended that you keep the thermostat set at 70°F.
What is the perfect temperature for sleeping? ›The best room temperature for sleep is approximately 65 degrees Fahrenheit (18.3 degrees Celsius). This may vary by a few degrees from person to person, but most doctors recommend keeping the thermostat set between 60 to 68 degrees Fahrenheit (15.6 to 20 degrees Celsius) for the most comfortable sleep.
Is 65 too cold for house? ›The World Health Organization recommends keeping indoor temperatures between 64 and 75 degrees Fahrenheit for healthy people. The minimum temperature should be kept above 68 degrees Fahrenheit to protect the very young, the elderly, or people with health problems. Watch out for signs of hypothermia.
Is it better to set your thermostat at a constant temperature? ›The startup process for a furnace consumes more energy than simply running the entire time at one set temperature, costing you additional money. To maximize efficiency, it's best to keep your furnace (or AC) at the same consistent temperature for long periods of time.
What is the best heating schedule? ›You should set the central heating programme to come on around half an hour before you get up, and go off around half an hour before you go to bed. And if the house is empty during the day, or you can manage without heating during the day, make sure you've set the programmer to go off for this period too.
What temperature should central heating thermostat be set at night? ›An individual boiler thermostat setting in each room is great for this, and you can set the exact temperature as you wish in each room. Try reducing your bedroom temperature slightly and see how much your sleep improves. The recommended sleeping temperature for a comfortable night's sleep is between 16 and 18 degrees.
Should you leave underfloor heating on all the time? ›It is advised that in the depths of winter, an underfloor heating system should be kept on at all times. Although it should be at different temperatures depending on usage and activity in the house. This is because underfloor heating can take two to three hours to warm up, so it is best to not completely turn it off.
How many hours a day should heating be on? ›While there is no one-size-fits-all solution for how long your heating should be on, a general guideline for most homes is 8-10 hours per day.
What is an RF switch on Heatmiser? ›The Heatmiser RF Switch is a 2 channel receiver.
The RF Switch can cater for a single heating zone and the hot water cylinder as well as providing a boiler enable output. Output indications are provided and the unit is surface mount for easy installation.
How does the Heatmiser RF switch work? ›
The Heatmiser RF-SWITCH is a versatile surface-mount wireless receiver designed for controlling heating and hot water zones. With its 2-channel capability, it can efficiently manage two heating zones and one hot water zone, providing a reliable volt-free output for the boiler.
What is the code for Heatmiser? ›Before you can access the Heatmiser you must enter the passcode. This passcode is set to 0000 as a factory default but may be changed at any time by the user to ensure security.
How do I know if my thermostat is working properly? ›You'll most likely hear a quiet clicking sound followed by air moving through the ductwork. You can also place your hand on a vent to feel for hot or cold air. If you don't hear or feel anything within a minute or two of making the changes, your thermostat may need to be replaced.
Why is my thermostat not turning on heat? ›Check Your Thermostat
If your heating system will not turn on, the first thing you should do is check the thermostat. The thermostat's battery may have gone bad, causing it to power off. If your thermostat is hardwired, a power surge, brownout, or brief power outage may have caused the thermostat to lose its settings.
It will turn the thermostat off, and in most cases, it will restore the thermostat to factory settings. If you're experiencing problems with your HVAC system, you should try using the reset button. If that doesn't work, you can always contact an HVAC technician for assistance.
Why is my wireless thermostat not working? ›Check the batteries in the thermostat
It sounds so obvious but this is a really common thing. Being wireless, the sole power source for the thermostat is its batteries and they don't last forever. Try changing the batteries and then turn the heating on.
If your underfloor heating is not heating up and there is no sign of life on the thermostat then you need to check the electrical supply. One of the most common reasons for electric underfloor heating not working is that somebody has switched off the fused spur that supplies the underfloor heating with power!
What is the life expectancy of underfloor heating? ›How long will an underfloor heating system last? The pipes used for underfloor heating must have a projected lifespan of 50 years, in accordance with industry standard DIN 4726; however over 100 years is entirely possible.
Do I leave the heating on all the time? ›According to experts at the Energy Saving Trust, the idea it's cheaper to leave the heating on low all day is a myth. They're clear that having the heating on only when you need it is, in the long run, the best way to save energy, and therefore money.
What temperature should I set my heated floor? ›The ideal temperature underfloor heating should be run at also varies; for wood, carpets and vinyl floor finishes we recommend a maximum heat temperature of 81 degrees and for stone and tiles, a slightly higher temperature of 86 degrees.
What temperature should underfloor heating be set at? ›
With an underfloor heating system and thermostats, you're always in control over how warm you want your underfloor temperature to be. An ideal floor surface temperature for most people is between 23°C and 27°C.
What is the best heat setting? ›According to ENERGYSTAR.gov, the ideal home temperature should be between 70 to 78 degrees Fahrenheit. To maximize energy efficiency, turning your thermostat up or down by 8 degrees while you're away from your home can help reduce your heating and cooling costs.
What setting should my heating be on? ›The WHO suggests 20 degrees as the ideal temperature for the old, young or unwell. For healthy adults, you should heat your home to a room temperature that feels comfortable.
Does the thermostat override the timer? ›The thermostat is traditionally separate to the boiler timer but they work together to keep the temperature in your home just right. Your thermostat constantly monitors the temperature of your home and turns the boiler off when it reaches your target temperature.
At what temperature is the thermostat set during daytime hours? ›A universal guideline for a normal summer thermostat setting is 78° F. However, this condition should be set for when you're at home during the daytime. For optimal comfort to cost ratio, your home thermostat temperature range will vary throughout the day.
How do I know if my underfloor heating is working properly? ›You should see the flame icon on the screen and hear the thermostat click when it switches the heating on. After about 15 minutes you should feel the floor getting warm under the towel. If you do, you know that your underfloor heating system is all good and working as it should.
Does underfloor heating keep the house warm? ›Underfloor heating is a cleaner, smarter way to heat your home. Using radiant heat technology, UFH is more energy-efficient than other heating methods by gently warming the people and objects in the room directly, from the ground up.
Should the floor feel warm with underfloor heating? ›As a general rule of thumb, your heated floor shouldn't feel hot - it should just not feel cold.