Loading... Please wait...The Heatmiser DT is our 230v, non programmable digital room thermostat, ideal for conventional or combi-boiler systems. This thermostat can be used to replace a mechanical thermostat as is designed to work along side a heating programmer.
The following features are available;
Upgrading your Existing Thermostat and selecting the Terminal Output
1. Firstly, check that you have at least three wires (excluding the earth) behind your existing stat. If you have, the PRT is compatible.
2. Our changeover terminal option is for those controlling a valve that needs power to open and power to close. If you are simply controlling a boiler, just select the standard model.
3. Our DT thermostat is flush mounting, so a back box 35mm deep, will need to be installed in the wall.
Not sure if this is the right product for you? Click here to see our FAQ
Posted by Unknown on 2nd Apr 2010
Q: Can I replace my Drayton RTS1 with your heatmiser DT
A: Our DT requires three wires excluding the earth. Providing you have this it will be compatible.
Posted by Unknown on 16th Mar 2010
Q: Hello there I have 2 wires + earth can I still use Heatmiser DT model? If not any other model that work with 2 wires and earth?
A: No, you would need three wires plus earth to use our thermostats. We have no suitable model for your installation.
Posted by Richard Armstrong on 12th Mar 2010
Q: Can you please let me know how i select the Terminal Output:type on the web page, it is grayed out. I require a thermostat which will power your In-Line Wax Valve - Heatmiser VAL-012.
A: First select the colour, then select the terminal. You would need the standard output terminal
Posted by David on 27th Sep 2009
Q - After reading your article I would like to replace my existing 30 year old mechanical thermostat Satchwell TLX 2259 with a modern programmable electronic thermostat. The system is micro-bore and has a separate timer control unit and electrically driven heating system and hot water circuit motorised zone valves that appear to only need power to open Honeywell V4043.
Do I need standard or changeover output please?
A - You will need standard terminals.
Posted by Berni on 27th Jul 2009
Q: Hi do i need standard or changeover output when replacing mechanical thermostat thanks b nicholson
A: You need to check the cables behind your existing thermostat and check the appliance you are switching. The changeover type is required when you have a valve that requires power to open and power to close.
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