Fabdec Stainless Steel Cylinders

[MortarThePoint]

Does anyone have one of these or know anything about them. My ASHP quote (11.2kW Ecodan) has the 275 litre one listed as the tank included. This is all the information I have: DHW Cylinders.pdf

 

The information from Alto Energy doesn't say it's an Excelsoir, but here is that brochure: https://fabdec.com/wp-content/uploads/2022/12/Excelsior-Brochure_221103b_lq.pdf

That doesn't list 275 litre option, but Fabdec have no other range listed based on a quick look at their website (https://fabdec.com/en/water-heating/)

Edited December 8, 2022 by MortarThePoint

[MortarThePoint]

The 275L tank has a heat loss figure of 1.64kWh/day so 68W which is better than the Gledhill Stainless Lite Plus (~80W) and Grant QR (2.1kWh/day) but a bit worse than the Valliant ones (1.5kW/day). Each 0.1kWh of heat loss is probably 0.025kWh of electricity, so at 40p/kWh that would 1p/day, £3.65/year. The Fabdec would be 16.4p/day so £60/year.

 

It only has one immersion heater, is that a concern?

[MortarThePoint]

Hi @Nickfromwales sorry to call you out but you've normally got some good thoughts on these things.

[PeterW]

Your quote or at least the data sheet says external expansion - the excelsior is an odd internal one that I’ve not seen before. 

[MortarThePoint]

Interesting, must be different then.

 

Other that kWh/day heat loss, being stainless steel and the number of immersion heaters what else is worth looking for?

Edited December 11, 2022 by MortarThePoint

[JohnMo]

I may be wrong, but the coil sizes in the brochure look small for a heat pump?

 

Could be a custom build heat pump cylinder with a larger coil, hence the slightly higher over all capacity of the cylinder?

[MortarThePoint]

1 hour ago, JohnMo said:

I may be wrong, but the coil sizes in the brochure look small for a heat pump?

 

Could be a custom build heat pump cylinder with a larger coil, hence the slightly higher over all capacity of the cylinder?

 

The Alto PDF lists it as 3m2 which is the same as the Gledhill. I can't see a number for the Valliant.

 

I guess the greater the area the more quickly you can heat the water.

[JOE187]

HI I have the 255l twin coil  no problems, immersion in perfect place to run diverter.

 50mm Pir on top of cylinder and bubble foil jacket virtually no noticeable  heat loss.

 

[MortarThePoint]

1 hour ago, JOE187 said:

I have the 255l twin coil

What is the benefit of twin coil? Do you have solar thermal or something, or is it about giving you the ability to just heat the top of the cylinder?

[JOE187]

6 hours ago, MortarThePoint said:

What is the benefit of twin coil? Do you have solar thermal or something, or is it about giving you the ability to just heat the top of the cylinder?

Yes solar thermal lower and boiler coil midway.

[MortarThePoint]

PDGF link doesn't work so here it is as an image: