Advice re boiler size

[casper461]

I am going to have my old Potterton floor standing kingfisher boiler replaced with a normal not combi Worcester Bosch . We have a fairly large semi and it will have to heat 13 rads and a cylinder .What size should I go for

Thanks in advance

 

[Phill Peck]

About 600mm x 400mm x 300mm should fit

 

[Dan Robinson]

Something other than a Wooshitter Botch would be my advice. An output of 24kW is likely to be more than enough. My fairly large semi only appears when there's bikini's and nice bottoms around; however, I do have a respectably sized detached house that has a 15kW boiler in it. It would have 14 or so rads plus hot water if I didn't have the ground floor heated with underfloor heating.

 

[casper461]

Thanks for your reply about output .What boiler would you recommend Im only going for a Bosch because I heard they were good

Thanks

 

[Dan Robinson]

The triumph of marketing over substance.

Boiler recommendations:

Intergas
Atag
Vaillant
Viessmann

In that order.

THing is about output is the boiler needs to be sized correctly. No point going massively over, and of course no point undesizing.

Controls are as important though.

 

[casper461]

Thanks again I think I will go with the Intergas
Compact HRE 30 OV Condensing Open Vent Boiler

Do you think that will do me

Thanks

 

[Dan Robinson]

Yep.

 

[casper461]

Thanks again

 

[Razor900]

The Intergas 24kW OV would be more than big enough. Personally if there's any glass in the windows I wouldn't go bigger than the 18kW

 

[simond]

When investing in a niche product, check the warranty and who they've got to administer it, in other words, how long and who do they get to turn up.

Also see how many units they sell each year compared to the major players. The big boys do 300,000 units a year, and have the service support and parts availability to back that up, both now and in the future.

Smaller boiler firms will struggle to survive unless they build market share quickly because the economies of scale aren't there.

 

[Razor900]

Intergas give up to ten years and it's backed up by an in house service team.

Not bad for a niche boiler that they've made 2 million of eh??