The eTRV – Revolutionising the way we control our heating
- Programmable radiator controller (PRC)
- Simple to install and use
- Quite operation
- Replaces traditional Thermostatic Radiator Valves (TRV’s)
- Controls each radiator independently
- Improves comfort with a choice of daily temperature settings
- Energy saving features which include one-hour boost & sleep modes
- Low power circuitry for long battery life
- Weekly valve exercise - prolonging valve life
- Designed to be tamper-proof, child safe
The eTRV Remote Control – Putting you in control of your heating
- AUTO runs three independent programmes each day
- Choice of LOW / ECONOMY/COMFORT temperature for each programme
- SLEEP turns heating off early
- HOUR boost to COMFORT
- +/- turns up/down by 1°C
- 16°C to 24°C temperature selection
- FROST, 10°C control
- OFF - Summer control
- Time, temperature and mode feedback
- AUTO programmes provide heating only when required
The eTRV
Controller Type: Programmable
Grey Push Button: Lockable
Set Point Range: 10°C to 24°C
Frost Protection Set Point: 10°C (default)
Storage Temperature: -20°C to +60°C
Operating Temperature: +5°C to +40°C
Max Circulation Temperature : 90°C
Zone Type: Maintained or Intermittent
Power Supply: 2 x 1.5V LR6 - AA Alkaline Batteries (included)
Battery Life: Approx 2.5 years (depending on use)
Back- Up Memory: Yes
Dimensions (H x W x D): 110mm x 45mm x 45mm
LED indicator: Red, Amber, Green
Valve Adapter Rings: 28mm or 30mm (included)
Protection Class: IP20
eTRV Remote Control
Operating Temperature: -10°C to +50°C
Storage Temperature: -20°C to +60°C
Humidity: 0 to 90% RH
Range: Up to 7m
Power Supply: 1 x 3V CR2025 battery (included)
Battery Life: 3 years (depending on use)
Dimensions (H x W x D): 115mm x 58mm x 8mm
Protection Class: IP20
Frequently Asked Questions
I understand that rooms can be individually controlled, but if the boiler is still on, how am I saving energy?
All boilers have a built-in boiler thermostat. The more radiators that are on, the greater the demand will be on the heating system, and the more frequently the boiler thermostat will run the boiler. With a number of radiators switched off, there will be less demand on the system, and the boiler thermostat will run the boiler less frequently, saving energy.
How do you arrive at the claim of “realistic potential for 25% energy savings”?
We offer this statement as an indication of the savings that eTRV could achieve. However, actual savings will depend on many factors, such as the construction and insulation of your home, how you currently manage your heating, and how you intend to manage your heating using eTRV. Other manufacturers claim savings of 30% are achievable.
Independent studies for similar devices claim savings of 20% to 24% are available. To save 25%, we would expect that you would need to be able to programme each radiator to be off for a third of the time it is currently set to be on. For example, if a living room is heated from 6am to 9pm (15 hours), your lifestyle may allow an eTRV to operate the heating in that room from 6am to 10am and then from 3pm to 9pm (10 hours). If a bedroom is heated from 6am to 8am and then from 6pm to 10pm (6 hours), your lifestyle may allow an eTRV to operate the heating in that room from 6am to 8am and then from 8pm to 10pm (4 hours). Using different temperature settings for each period could also help to maximise the energy savings.
What is the typical ‘pay-back’ time for an eTRV?
The time it takes to recoup the investment in buying an eTRV varies according to the size of the property, how well it is insulated, the room-temperature requirements of the occupiers, the way the thermostats are programmed and numerous other factors. See Cost Analysis.
Typical Family Home Heating bill £1800 per annum
Purchase of 10 x eTRV’s £499.99
- Realistic potential energy savings of 20% per annum £360
- Realistic potential energy savings of 25% per annum £450
- Return on investment at 20% = 1.3 years
- Return on investment at 25% = 1.1 years
The savings could be even greater in commercial properties and if temperatures are lowered in rooms which are used infrequently and hallways.
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