Power in cooling mode: 3 500 W. Power in heating mode: 3 700 W. Gas HFC R410A. COP: 3,95 / ERA: Interior noise 3,79: 28 dB Designed to operate at a maximum temperature. -15 ° C. With remote control, installation accessories and electrical wiring.
At 0.25 € / kWh with a COPA of 4, this gives a price of the useful kWh of 0.063 € / kWh which corresponds to a fuel oil price of 0.063 / 0.8 = 0.078 is 0.78 € / kWh so it is kif kif with the oil at the current price even with electricity 2 times more expensive than in France ... well that's not what interests me in this subject ...
Attention it's a little headache ...
As here it can be cold, I thought place the outdoor battery in a greenhouse next to the house that I had renovated some time ago see details here: https://www.econologie.com/forums/renovation ... t7461.html (The vertical glazed parts are exotic wood double glazing so good enough inertia and insulation ... for a greenhouse)
The greenhouse is exposed east and receives the morning sun until about noon between the 2 equinoxes. It rises to more than 40 ° C in summer (open doors).
Is it necessary to place the external battery in this greenhouse?
Advantages:
a) gain of the slightest small ray of sunlight to increase the "outside" T ° and therefore the performance of the heat pump
b) average temperature over the year improved finally to see next a) disadvantages
c) avoids overheating in the greenhouse in summer
Disadvantages / fears:
a) despite the higher T ° in the greenhouse, in winter, without sun, it may cool faster than the ambient air and thus degrade performance (but the greenhouse can be opened / ventilated)
b) the afternoon it may be less interesting than if I placed on the sunny west wall.
c) in case of no need for heating in summer: how does an external battery with more than 40 ° C and in the humidity of a greenhouse behave? Lifetime?
That's all I see for the moment ... but you'll probably have other ideas ...
Thermally, a solution would be to put a regulation on the T ° of the greenhouse (to stop below a certain greenhouse temperature whatever the T ° outside?)? As this would tighten it would have time to warm up again and the average COPA would be improved?
In short I paddle a little there ... so your opinion should enlighten me ...