HouseHeat vs TRVS

 Please phone us on 01367 81 01 61 to discuss further if the below does not convince you!

HouseHeat v  (Useless) TRVs 

TRV Problems


The user has to remember to turn radiators up when entering a room and down again when leaving. This is not always possible as they often are behind radiator covers/cupboards etc. HouseHeat will automatically do this for the user

TRVs are inaccurate as they measure the temperature at the radiator. Househeat Electronic TRV measures within 1 degree accuracy and the wireless room thermostat can be placed where the person is in the room; e.g.  on a bedside or lounge table, so overheating does not occur and a precise comfort temperature is achieved.

TRVs suffer from sticking pins so they do not work efficiently until you loosen the pin. Househeat has a built-in de-calcification system which works the pin all year, including the summer, which eliminates maintenance issues and makes the system more efficient.

TRVs let all water in at once - then the wax pin expands to shut off the flow when the temperature is reached - but by this time the radiator has overheated and wasted energy. HouseHeat sends out a signal every two minutes  and will modulate the heating by opening the valve in increments and will learn the pattern of the room usage; therefore saving energy and never over heating the room.

TRVs don't communicate with the boiler. HouseTech have a special boiler box which allows the wireless thermostats to communicate with  the boiler, shutting it down if no radiators are calling for heat; therefore saving money.

A normal house in the UK will rely on a thermostat positioned in the hall/lounge which dictates temperature for the whole house. HouseHeat has thermostats in individual rooms which allow programming of individual radiators for time and temperature and feed the information back to the boiler if a boiler box is added.

HouseTech's intelligent window sensors can be added to the system. These detect if a window has been opened and they send a wireless signal to turn down the radiator to a level which the user requires, thus not wasting heat to the outside. 

Other Benefits

HouseHeat is a wireless heating system so you don’t have to drain the radiators, providing there is a Thermostatic radiator valve body in place. There are no walls to channel out for wires.

Domestic House; a typical example.

The best example is a domestic house in the winter months at a weekend. The boiler may be on all the time. However occupancy /usage of a bedroom may be as follows

10pm to 11pm getting ready for bed in bedroom
11pm to 9am sleep time
9am to 10 am shower/changing in bedroom
10am to 10pm not using the bedroom

If in the above case, the bedroom was set to a maximum setting on a Thermostatic radiator valve  then there would be many hours of non usage at this high heat. If we look at the benefit of Househeat it could be as follows:

10pm to 11pm 22 degrees (1 hour)
11pm to 8.30 am 16 degrees (9.5 hours)
8.30 to 9.30 22 degrees (1 hour)
9.30 to 10pm 16 degrees (12.5 hours)

Therefore there will be a total of 2 hours at 22 degrees rather than 24 hours at 22 degrees. There will be 22 hours where the heating is turned down by 6 degrees and for every 1 degree heating is turned down a 8-10% energy saving is achieved according to the Carbon Trust.

The same could be applied to the lounge so that too would only be heated when it’s in use - say between 5.30pm and 10.30 pm. The rest of the day HouseHeat would automatically turn down the heating.



Hello John

Its very kind of you to take the time to write to me. It is very interesting for us to receive this sort of data. I must confess it is quite remarkable the results you have achieved with our system. I don't get results in such a structured way. Many people are happy with our system but that is all we hear. I guess a lot don't measure the actual results but notice a difference. The problem is is that people just see the bills and see they are going up!  Sadly we have no control over this but what hopefully does go down and in your case by quite a degree is the kw per hour usage and if gas/oil prices stayed the same they would see a large saving. 

UK sales Manager HouseTech Solutions.


On 18 Dec 2011, at 22:14, John Blackmore wrote:


Sorry for the delay in writing. Have been too busy dealing with my own clients.

Anyway I have cleaned up some of my data and attached – hope it will help you. If any potential client wants to talk to a happy customer please get them to telephone me.

I have 14 rads in a 4 bed house. The loft has max insulation, the walls are cavity filled, suspended floor insulated. House has new double glazing ( about 18 months old now).

A vaillant ecotech plus 624 24 kw system boiler was installed in Sept 2010 ( the start date for my records). I always adjust the boiler temp to ensure max condensing.

Apart from the weather ( which was milder this year) nothing else was changed. I installed you system around Christmas last year but stopped making any comparison on Nov 25 because that is when

A new 5kw wood burner was installed. So I can only make a fair comparison from Sept 3 to Nov 25. Even allowing for the better weather a 76% reduction in gas usage is not bad.

I am using the boiler connect to control 6 rads – with the others only being able to come on if a control rad activates the boiler. I’m still experimenting but feel that it is better to set a minimum percentage before allowing a rad to activate the boiler – currently set a 7%

If you make any improvements to the system I would be grateful if you could let me know and if you ever want anyone to road test anything just give me a call.

Happy Christmas