Gas Boiler

[Beboers]

Hi Guys,

House renovation so insulation everywhere

Customer has got 10 radiators, 3 towel radiators, UFH Kitchen/Dining room, Study split in to 3 zones (6 loops)

210 ltr unvented all external controls, split in to three zones.

Boiler installed vailant 428.

do you think this is big enough?

 

[Matt06]

What are rad outputs and floor area for UFH ? assuming Rads are correct size for heat losses

 

[happyflyer]

Its how long is a piece of string boiler 30 Kws why can't you work it out you have all the radiators sizes etc, take the UFH at around 75 watts/m2 and see what you come up with.

 

[AWheating]

when you say customer has 10 rads etc..... has he/she brought the materials and sized the system/rads?

if so just fit what they have brought under the understnading that you can not warranty the materials and the design/ spec of the system.

if your being paid to design and supply the system the boiler sizing should be a simple calculation of adding up your designed heat losses and a small allowance for your cylinder.