Small things matter

[Moxi]

What was your heat load requirement for the house and whats your flow temp ?

Moxi

[richbee]

Looking good! - hopefully mine will fairly soon look very like that as well

What make/model are you getting Richbee? All being well you'll be well pleased with it.

Mine is back on after the installer checked the connections to the pump, might have been a loose connection but a Vaillant engineer is coming to check it over on Wednesday.

Same as yours - 12kW Arotherm plus

[Fintray]

What was your heat load requirement for the house and whats your flow temp ?

Moxi

Hi Moxi, heat load was 9.33kW at -4.7C at a design flow temp of 35C.

[Fintray]

Looking good! - hopefully mine will fairly soon look very like that as well

What make/model are you getting Richbee? All being well you'll be well pleased with it.

Mine is back on after the installer checked the connections to the pump, might have been a loose connection but a Vaillant engineer is coming to check it over on Wednesday.

Same as yours - 12kW Arotherm plus

I've got the smaller one at 10kW.

[Moxi]

Thanks Fintray,

I have a total heat requirement (H+DHW) of 8,374kWh/yr so I am hoping to be sliding in under 6kW for an ASHP, that would be moving away from a grossly oversized condensing boiler that is rated at 28kW.

Moxi

[Fintray]

Thanks Fintray,

I have a total heat requirement (H+DHW) of 8,374kWh/yr so I am hoping to be sliding in under 6kW for an ASHP, that would be moving away from a grossly oversized condensing boiler that is rated at 28kW.

Moxi

Moxi

You'll be able to see my heat pump details here https://heatpumpmonitor.org/ but you'll need to reduce the "Min days" to zero and I'm under Aberdeenshire.

[richbee]

Thanks Fintray,

I have a total heat requirement (H+DHW) of 8,374kWh/yr so I am hoping to be sliding in under 6kW for an ASHP, that would be moving away from a grossly oversized condensing boiler that is rated at 28kW.

Moxi

Moxi

You'll be able to see my heat pump details here https://heatpumpmonitor.org/ but you'll need to reduce the "Min days" to zero and I'm under Aberdeenshire.

Aha - found you - SCOP of 3.4 so far

[richbee]

What make/model are you getting Richbee? All being well you'll be well pleased with it.

Mine is back on after the installer checked the connections to the pump, might have been a loose connection but a Vaillant engineer is coming to check it over on Wednesday.

Same as yours - 12kW Arotherm plus

I've got the smaller one at 10kW.

Nice - think they are physically the same size, just different max power rating.
My installer reckoned we could probably get away with the 10kW version, but as the minimum output power level is the same for both, decided that having the 12kW version probably made sense for worst case scenario.

[Fintray]

Nice - think they are physically the same size, just different max power rating.
My installer reckoned we could probably get away with the 10kW version, but as the minimum output power level is the same for both, decided that having the 12kW version probably made sense for worst case scenario.

I'm hoping to improve the COP once the house is back up to temperature and I can tune in the heating curve and go fully weather compensation only.

The size of the units is identical (big!), I did consider asking for the 12kW but decided to stick with the 10kW as the nearest to my heat loss calculation.
The graphs are showing over 13kW heat output so yours should be plenty big enough.

[Joeboy]

Nice - think they are physically the same size, just different max power rating.
My installer reckoned we could probably get away with the 10kW version, but as the minimum output power level is the same for both, decided that having the 12kW version probably made sense for worst case scenario.

I'm hoping to improve the COP once the house is back up to temperature and I can tune in the heating curve and go fully weather compensation only.

The size of the units is identical (big!), I did consider asking for the 12kW but decided to stick with the 10kW as the nearest to my heat loss calculation.
The graphs are showing over 13kW heat output so yours should be plenty big enough.

Was it an easy fix today to get it running again?