Infra Red radiators, or........

[Oldshape]

lol

good luck with your project.

The ASHP will still need an electric element to heat for DHW, the store will still be immersion. And because we don't really want underfloor heating, the wet rads would also need an electric boost. But even UFH is not a no, yet.

 

[sean_ork]

wet rads, fed from a TS, which is heated via an ASHP will not normally need "an electric boost" provided you have sized the rads correctly, and assuming the house will be insulated far in excess of the currently BR requirements.

"the store will be an immersion" - this just tells me you don't know what a thermal store (in relation to this topic ) is.

 

[Midwest]

House is not that big! Unfortunately.
CU is a MK Sentry 21 way, or similar.

OP, if you are thinking of an all electric property, 11kW of storage heaters, 4 x immersion heaters (your suggestion), electric shower, electric oven and the other sockets & lighting etc, you are going to be very close to the typical 100amp domestic supply, what supply do you have?

 

[Electric Magic]

You'll be waiting a very very very long time to hear from someone who has whole house infra red heating installed.

Not that long, see post 7 - okay okay, it's a flat ;-)

 

[sean_ork]

Lol fair point, is it a rental ?

Any other source of heat ?

 

[Electric Magic]

No, owner occupied. No other sources of heat. Existing panel heaters being replaced. Customer wants them installed on the ceilings, which are all over 3m high. Based on the calculations from the supplier (Herschel in this instance) the power demand is about a third of the amount of the existing panel heaters (which could have been over specified but I haven't bothered trying to work it out).

 

[sean_ork]

Using them in flats seems reasonable, given the limited alternatives.

 

[Oldshape]

OP, if you are thinking of an all electric property, 11kW of storage heaters, 4 x immersion heaters (your suggestion), electric shower, electric oven and the other sockets & lighting etc, you are going to be very close to the typical 100amp domestic supply, what supply do you have?

100 amp, single phase

 

[Midwest]

100 amp, single phase

Then if you are going 'all electric' that's another consideration

 

[Oldshape]

wet rads, fed from a TS, which is heated via an ASHP will not normally need "an electric boost" provided you have sized the rads correctly, and assuming the house will be insulated far in excess of the currently BR requirements.

"the store will be an immersion" - this just tells me you don't know what a thermal store (in relation to this topic ) is.

OK, the librarian level of technical term isn't correct. An immersion heater, to me, is a big cylinder, with both the electrical element in it, and a coil fed from a heating source for heat exchange purposes.
ASHP temps are very low, as you know, so yes, underfloor is one answer, or colossal ugly fat rads. Output temp is 40 degrees. To get it to 65, a sensible temperature for DHW or rads, needs a boost. The CoP plummets due to more electric being used.
I need to find out off the Building regs guy, if the underfloor heating backboard matrix has to be on top of the 75mm selotex or can be subtracted from it. And, if the ASHP fan is noisy, it wouldn't be allowed by English heritage anyway.

And, the prices of the ASHP is a p155 take just like the biomass boilers. Several thousand quid for basically a reverse fridge with a condenser and fan. Again, they know you are getting a CGI grant, so hike up the retail price.

 

[Oldshape]

OP, if you are thinking of an all electric property, 11kW of storage heaters, 4 x immersion heaters (your suggestion), electric shower, electric oven and the other sockets & lighting etc, you are going to be very close to the typical 100amp domestic supply, what supply do you have?

But that arithmetic assumes all of the kit is on at once. Don't say storage heater....already dismissed as junk

 

[gutterball]

have a look at this for infrared heating
http://professional-electrician.com/products/watch-jouletherm-carbo-e-paint/

 

[Midwest]

Errgh??

 

[Oldshape]

Then if you are going 'all electric' that's another consideration

As per OP, I have a blank canvas and exploring all possibilities. Dismissed oil, gas, solar, GSHP.
The non monetary value is also swaying my decisions. Biomass pellets are delivered on a tonne pallet. I have to store these in my house, obviously the order for next tonne will be when I still have say 25% of previous left. That's a lot of storage! Cannot build an external hopper. The infra red panels are very attractive, and out of the way, most of mine would be ceiling mounted.
However, if I go electric and it turns out poo, I will have a very expensive remedy, or leave pipes on show.....like hell that will happen.

 

[sean_ork]

My final comment - the OP seems to be expecting to install a cheap system, expecting it to be cheap to run.

An expensive system to install is only expensive once, an expensive system to run is always going to be expensive.