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Old 11-08-20, 09:22 AM   #17
Sadashi
Lurking Renovator
 
Join Date: Jan 2020
Location: Romania
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Quote:
Originally Posted by ferox View Post
For the cheeper plan can anybody recommend a system type with high COP? And made it like Sadashi did.
It's more than just high COP in my opinion . You can have high COP at A7/W35 but the unit will loose heating capacity dramatically when the cold weather is coming and you need it most . I would choose a Japanese manufacturer but not Daikin ( it loses about 40-50 % heating capacity at negative temperatures ) and not entry level units . In my opinion is more important to have heating capacity at low temperatures with lower COP , than high COP at positive temperatures and no heating capacity at low temperatures , you need to find a balance between them two and you need to find out how many kW of heating does your house need when you have -15°C , -20°C outside and then look for a unit that can provide those kW of heating at those temperatures . Good luck
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