Mike_scotland

He is mcs regiatered. I will get rhi.... hes the builder as i call him the owner of the company but he is a heating engineer to trade.

Plastering just finished

Are all heat pumps the same? Like a diaken 13kw be same as a nibe 13kw per say

Are all heat pumps the same? Output is output?

Did you go with them if bot why and who did you go with

Do we know much about them?

Hey group, My builder has been telling me for months of our build he is purchasing us a vailliant or daiken heat pump.... now this morning he has said its going to be a Grant aerona or something....(fiest i heard) has anyone heard of this manufacturer?

I assume so as my builder sorting it. Its a 4 bedroom 220m2 roughly. Just me my wife and 1 kid

WOW nice! i have triple glazed windows also not sure the u value yet, is Jeremys calculator easy enough to put in your details and get a rough usage?

what Insulation do you have in your place Dave?

they were aiming for the standard 5 but were hoping for better it hasnt been carried out yet... i hope thats what you meant m8?

i would of went gas i think but its country living and i heard ASHP were great and im hoping they are!

yeah im trying to keep on top of it with the builder, roof has 420mm of wool in the loft upstairs coombed walls have 150mm of kingspan then Vapour barrier tin foil stuff then 35mm kingspan over downstairs has 140mm of frametherm wool then Vapour barrier tin foil stuff then 35mm kingspan over Ground has UFH with 150mm kingspan and then screed. probely not the best but its ok i think but not anticipating the energy tripling

the next thing im trying to save for is ground solar! or a combination of some on my roof and some on the ground!

oh i get it now thats more like it, hopefully 2.5 or so atleast bring me down to around 10k

They said a 10kw i think but the builder said he would go for a 13 or 14 so its not running near capacity

the SAP said the house was going to be 8500 all in incl heating.DHW and fans/lightbulbs

JESUS so 25000 kwh a year? thats mental? thats over £5k a year at 0.21p how the hell is that if its a new build

i think the builder says he was going to go a step up, so its not working too hard or something, is it that bad over sizing?

im also assuming the 24552 kWh/year isnt taking into consideration the co officient? so if i got like 2.7/1 or so it would be alot lower?

so what does the peak heat loss at 7.9kw mean?

hello, I got this from my builder the other day he got it from vaillant who are the likely ASHP company he is going to use, it may aswlel be chinese to me, just wondering if it looks good? or bad or what really? house is around 220m2 with triple glazing but quite alot of windows downstairs and up. Thanks,

is there a rough calculation?, i just like to know but also make sure my builder is doing it well, i hear so many horror stories of the pump being too big or too small