![]() ![]() ![]() In this post I discuss a very simple rule of thumb for heat pump size - thanks to Michael de Podesta - and some reasons it gives an underestimate in my case. Large systems are physically large and, in the case of heat pumps, have a greater impact on the landscape (see picture above). ![]() Running at small fractions of full capacity reduces efficiency (usually).Large systems cost more - not as much as you might expect, but still more.Oversizing does matter, both for boilers and heat pumps. Still, at least I have renewable heating :-) I have tried to make it less intrusive with some stick-on leaf patterns. My heat pump is much bigger than it needs to be. My heat pump is oversized by at least 50%. So how big should it be? Hearsay tells me that even with boilers, sales-people love to sell you systems that are bigger than you need. With heat pumps, you normally have a cylinder for hot water and it is the space heating requirement that dictates the size you need. Most people have combi-boilers and the size of the boiler required is often dictated by the need to heat hot water for baths and showers quickly rather than space heating. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |