air source heat pump central heating | Central Heating Forum | Plumbers Forums
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Discuss air source heat pump central heating in the Central Heating Forum area at Plumbers Forums

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Hi I have had a brand new and very expensive air source heat pump installed together with radiators etc (had storage heaters before). The water tank is in the airing cupboard on the first floor. I am hoping someone on this forum has experience with these systems. I have two questions.
How long should it take to warm up my house in the morning from base temperature (currently set at 15 degrees) and target temperature (currently set at 21?). And how much noise should the central heating make indoors? It currently sounds as if I have a washing machine going I. That airing cupboard constantly - with sounds of running water trickling etc. The company want me to pay the final bill but I have been trying to hold off as I am not sure that what has been installed is actually working as intended?
 
How long should it take to warm up my house in the morning from base temperature (currently set at 15 degrees) and target temperature (currently set at 21?).
How long is a piece of string? It depends on the size of your house, its construction and the size and distribution of the radiators.

And how much noise should the central heating make indoors? It currently sounds as if I have a washing machine going I. That airing cupboard constantly - with sounds of running water trickling etc
If the pipework is correctly sized and the pump setting is correct it should be virtually silent. From your description, it seems that there is a significant amount of air (or hydrogen) trapped in the system that needs bleeding out. Once you are sure it's not air it'll be time to try reducing the pump speed as the flow should be laminar, which is silent, not turbulent, is is 'whooshy and hissy' for want of a better description.
 
The heat pump discharge temp should be at a max of 45C to make it efficient enough to compete with gas/oil fired installations, this in turn means that your rads are/should be oversized by a factor of 2.5 or more when installed to enable the same heat up time as gas/oil temps of 65/70C.
Can you get any readings off your system? flow/return temps etc, if not request them from your installer.
The noise problem must be sorted out, you might expect a low humming noise at the very worst IMO.
 
As aboves,
The fact it's air source makes little difference, a central heating system should make very little detectable noise, the installer needs to sort it out.
No trickling and at worse a very low hum depending on where the pump is located.
Possibly some noise at each radiator as the Thermostatic valves close.
 
Hi I have had a brand new and very expensive air source heat pump installed together with radiators etc (had storage heaters before). The water tank is in the airing cupboard on the first floor. I am hoping someone on this forum has experience with these systems. I have two questions.
How long should it take to warm up my house in the morning from base temperature (currently set at 15 degrees) and target temperature (currently set at 21?). And how much noise should the central heating make indoors? It currently sounds as if I have a washing machine going I. That airing cupboard constantly - with sounds of running water trickling etc. The company want me to pay the final bill but I have been trying to hold off as I am not sure that what has been installed is actually working as intended?
What heat pump have you had installed ? We're the radiators and their pipework changed any pictures available of the installation?
 

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