Mad or not?

[JackofAll]

3 hours ago, Iceverge said:

https://www.donedeal.ie/tools-for-sale/mitsubishi-air-to-water-heat-pumps-puhz-w50vha-bs/31698623

👍fair play, thanks for that. Silly question, I imagine that 5kw is enough to heat the floor but would it be big enough to also heat DHW? BPC showed a 9kw heat pump on their MHRV quote.

Edited October 23, 2022 by JackofAll

[ProDave]

33 minutes ago, JackofAll said:

👍fair play, thanks for that. Silly question, I imagine that 5kw is enough to heat the floor but would it be big enough to also heat DHW? BPC showed a 9kw heat pump on their MHRV quote.

That depends on the heat loss from your house.  Worst case for us (+20 inside, -10 outside) is a little over 2kW heat loss, so a 5kW heat pump only needs to be running for less than half the time.  So it still has plenty of time available to heat the DHW.

 

In general most ASHP's only heat space heating or DHW never both at the same time.

[SteamyTea]

So I got my EDF bill today.

The new rates on it are as follows:

 

Meter Rental Day Charge 56.28p/day

Day rate 44.04p/kWh

Night rate 15.37p/kWh

Then they take off the £66/month, which actually leaves me in credit on my usage so far.

 

I was paying, until 01/10/2022

 

Meter Rental Day Charge 55.10p/day

Day rate 33.33p/kWh

Night rate 17.68p/kWh

 

So day up, night down and a penny of the meter.

 

 

Now going back to the new rates they sent me a while back by letter.

 

Meter Rental Day Charge 59.10p/day

Day rate 64.99p/kWh

Night rate 33.99p/kWh

 

The update that @Nick Thomas posted up

 

Meter Rental Day Charge 59.10/day

Day rate 54.16p/kWh

Night rate 13.01p/kWh

 

So it seems to me that the EDF don't have a clue what they are charging.