low nox boilers

[mfgs]

I have got a few boilers to fit on a new build project coming up and apparently as it is under the code for sustainable homes, they must have a nox output of less than 40 mg/kwh. Does anyone know of any cheap 24kw combis that fall into this category. I have been asking around and no one seems to have a clue what I am talking about.

 

[Billy Bob Bob]

think the potterton gold HEA does

 

[R1CKY]

I know the Worcester 25 Si has a low Nox code plug for the PCB, no idea on figures though sorry.

 

[Koogatubac]

Worcester Junior has it aswell, its same what ricky said, you get a chip and can change the nox by it

 

[Billy Bob Bob]

[DLMURL="http://www.potterton.co.uk/gold.htm"]Potterton Gold Combi HE A[/DLMURL]

gold is class 5 ultra low nox,its based on the duotec 1 so reliable and easy to fix prices are also good at mr central heating

 

[Destroyer2813]

Greenstar boiler range

 

[Billy Bob Bob]

and its not made of plastic:wink5: joking fellas though seriously its not LOL

 

[dancinplumba]

class 5 is 70mg/kwh.
code chip on WB drops it to 40

 

[Billy Bob Bob]

dont believe what Worcester tell you

 

[dancinplumba]

lol gas man, should av said ' so they say ' And no , dont fit em or recommend them, piles of carp imo

 

[Billy Bob Bob]

heres one to think about and this applies to both potterton/baxi and worcester if there boilers were that efficient why build in a calibration mode to get good fga readings? try doing a fga with it in DHW mode the results go very,very high

 

[mfgs]

I know the worcesters are under 40 mg/kwh and also the glowworm flexicom is, Just after the cheapeast available boiler,as the cheaper the boiler the more money in my pocket lol.

 

[AWheating]

email every manufacturer you'd use telling them what you need, and asking what rebate they will offer if you use there boiler for each house.