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	RE: Replacing Storage Heaters with a Heat Pump in a Stone Cottage By cathodeRay, 3 days ago Forum Air Source Heat Pumps (ASHPs)
	I have just had a look at how the freedom Heat Loss uses and calculates ACH values. The actual values are by default look up values based on room type from a hidden table, which has by it "m^3/hr per ...
	RE: Vaillant ecoTEC Plus - Flow Temp and Set Up By Batpred, 3 days ago Forum Air Source Heat Pumps (ASHPs)
	I have my hot water temp set to 42 and had to reduce hysteresis (an option on the installer menu) to 3. Now the water is warmed (during set time periods) whenever the sensor reads 39 or below.
	RE: Replacing Storage Heaters with a Heat Pump in a Stone Cottage By Paul1098, 3 days ago Forum Air Source Heat Pumps (ASHPs)
	@rob-of-york My reasoning for the move away from storage heaters was to make life easy when the house is sold.I think that if i can get A2W at a sensible price then it would be more acceptable to the ...
	RE: Replacing Storage Heaters with a Heat Pump in a Stone Cottage By Paul1098, 3 days ago Forum Air Source Heat Pumps (ASHPs)
	I always thought the same but I have seen m3/m2 quoted which is got me wondering but that could just be a mis-quote. That included the BUS. It included for 5 rads, HWT, controller and central heating ...
	RE: Vaillant ecoTEC Plus - Flow Temp and Set Up By JamesPa, 3 days ago Forum Air Source Heat Pumps (ASHPs)
	Yes to the final sentence. There are actually two controls that do more or less the same thing if you operate on pure wc, namely the set temperature and the curve slope/index ( 0.2). Both shift the ...
	RE: Missing flow temperature in Heat Geek proposal By Toodles, 3 days ago Forum Air Source Heat Pumps (ASHPs)
	@ashp-bobba It is very pleasing to me to hear that the potential customer is so engaged in this way for as you say, the relationship need not stop after commissioning day. I am still in contact with m...
	RE: Missing flow temperature in Heat Geek proposal By ASHP-BOBBA, 3 days ago Forum Air Source Heat Pumps (ASHPs)
	I have just come back form a full design on a 140yr old building running on oil, the customer paid for my time and I spent 3hrs designing and running through multiple options to find the correct solut...
	RE: Vaillant ecoTEC Plus - Flow Temp and Set Up By trebor12345, 3 days ago Forum Air Source Heat Pumps (ASHPs)
	I am still trying to get to grips with how the Curves and set temperatures inter act with each other. I set 20C as the base-line for all the Curves (as thats what is shown in the manual/chart.) I wa...
	RE: Replacing Storage Heaters with a Heat Pump in a Stone Cottage By Rob of York, 3 days ago Forum Air Source Heat Pumps (ASHPs)
	Posted by @paul1098 Just had my first quote of over £18k so if that's the general cost of an ASHP + central heating install for a small 2 bed cottage then my journey will be stopping and i'll go f...
	RE: Replacing Storage Heaters with a Heat Pump in a Stone Cottage By cathodeRay, 3 days ago Forum Air Source Heat Pumps (ASHPs)
	The freely available table I linked to just simplifies the calculation to a single multiplication: Attachment : image.png As you can see, the correction factor is about 0.5 at typ...
	RE: Vaillant ecoTEC Plus - Flow Temp and Set Up By JamesPa, 3 days ago Forum Air Source Heat Pumps (ASHPs)
	You won't be able to achieve those simultaneously unless curve 0.2 happens to be exactly the correct curve for your house. To find the correct curve set target temp to 22 (as that is your target temp...
	RE: Replacing Storage Heaters with a Heat Pump in a Stone Cottage By JamesPa, 3 days ago Forum Air Source Heat Pumps (ASHPs)
	Standard rad output is proportinal to dt^1.3 where DT is the difference between room temp and average rad temp. No need to sign up you can calculate it yourself unless you are using funky rads. ...