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MikeF
@mikef
Member
Eminent Member
Joined: Nov 18, 2023
Last seen: Feb 3, 2026
Profile Activity
Topics: 4 / Replies: 19
AllTopicsReplies
Reply
RE: Setback savings - fact or fiction?

I cant offer any charts of measured figures to the defrost debate, however i can add observed conditions during a defrost. My heat pump is outside the...

4 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Setback savings - fact or fiction?

@cathoderay Maybe i am a skeptic, men in white coats were involved with the Dieselgate emissions scandal, it didn't stop them, when money is involv...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Setback savings - fact or fiction?

@cathoderay It occurs to me that there is one variable that 99.9% of heat pump installs cannot accurately check, it is the energy output. Most of u...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Setback savings - fact or fiction?

@cathoderay Re defrost systems, i asked the engineer about these when the system was fitted. Viessmann have a two stage defrost, if the air tempera...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Optimum new build house design for Heat Pump

@ashp-bobba Thank you for a very detailed reply, the idea of having say 3 loops in a room instead of 2 makes sense if there is a smart controller f...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Optimum new build house design for Heat Pump

@bornagain Sounds a perfect fit, I am in a 200m2 Bungalow, unfortunately i didn't know about this site so allowed the heat loss calculations to dic...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Optimum new build house design for Heat Pump

@jamespa They will see what the plumber is suggesting when he gets back the projected heat loss, Maybe with a fancoil on the landing, the design te...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Optimum new build house design for Heat Pump

@jamespa I will see what the plans are for the hallway, it should be possible to use it to get heat upstairs. When balancing the UFH flows the hall...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Optimum new build house design for Heat Pump

@majordennisbloodnok I agree that they should look at MVHR, but will need to get their builder onside, some builders don't think air-tightness matte...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Topic
Optimum new build house design for Heat Pump
2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Replies: 14
Views: 1230
Reply
RE: How many compressor starts per year

@gc61 Less that one start per hour is very good, our pump can manage that when its cold, but it cant modulate down low enough in Spring and Autumn, ev...

11 months ago
Forum
Air Source Heat Pumps (ASHPs)
Topic
How many compressor starts per year
11 months ago
Forum
Air Source Heat Pumps (ASHPs)
Replies: 13
Views: 4277
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