Aneysha Minocha: 
 

Hello, 

We are currently modelling Air-Source Heat Pumps for a non-domestic retrofit. We have CoPs available from manufacturer datasheets, which relate to various base operating temperatures (A-7, A2, A10 etc., output temperatures 35 degrees). We would like to apply these at a granular level to model seasonal carbon reduction. 

What would be the best approach for this?

a. Is there a way we can use the manufacturer data on CoPs to convert to Seasonal Performance Factor annually?

OR

b. Use the various CoPs at different base temperatures and use them for the building at seasonal / monthly levels? Would we also require information on base ambient temperatures for specific locations?

Or

c. Another methodology that would be better suited?

Would greatly appreciate any guidance on this.

Thank you.

It is best to ask current users about their experiences with heat pumps. Many domestic users are not happy with them, especially in the winter in the U.K. They claim that they do not work as well as gas fired wet central heating systems. They are slow to heat up a building. Good thermal insulation is a better investment.

Z.

Aneysha Minocha: 
 

Hello, 

We are currently modelling Air-Source Heat Pumps for a non-domestic retrofit. We have CoPs available from manufacturer datasheets, which relate to various base operating temperatures (A-7, A2, A10 etc., output temperatures 35 degrees). We would like to apply these at a granular level to model seasonal carbon reduction. 

What would be the best approach for this?

a. Is there a way we can use the manufacturer data on CoPs to convert to Seasonal Performance Factor annually?

OR

b. Use the various CoPs at different base temperatures and use them for the building at seasonal / monthly levels? Would we also require information on base ambient temperatures for specific locations?

Or

c. Another methodology that would be better suited?

Would greatly appreciate any guidance on this.

Thank you.

It is best to ask current users about their experiences with heat pumps. Many domestic users are not happy with them, especially in the winter in the U.K. They claim that they do not work as well as gas fired wet central heating systems. They are slow to heat up a building. Good thermal insulation is a better investment.

Z.