HRM Wallstar - Plumber fitted wrong nozzle, should I be concerned?

[barki]

Hi all,

Not drastically urgent but I had a new heating engineer come and serviced my HRM Wallstar today.

All fine except he only had an 80deg nozzle in the van and the manual says it should be 60deg. The previous two nozzles have both been 60deg.

He said it wouldn't make any difference and 'guaranteed' that I wouldn't be getting any issues because the gas analyser was giving good readings of CO2, O2, etc before he left.

Of course the guarantee didn't come in writing - Should I be concerned about that?

I'm not bothered if it's true going to be fine, but I'm wondering if the wider spray pattern will end up causing me issues, in which case I've just paid to have my burner made a bit less healthy.

Cheers in advance,

Tom

 

[oilhead]

All the Wallstars I've serviced had 80o EH nozzles. I'm surprised that your manual specifies 60o, as referring to the manual on line, they all specify 80o.
Given the design of the boiler, an 80o makes more sense, as it gives a wider, shorter flame, more suited to a short boiler.
The giveaway to any problems would be the CO reading, as if the flame is too wide at the end of the blast tube you will get impingement which sends the CO sky high.

 

[barki]

OK thanks v much - The manual gives specs for three different sizes of HRM - small,middle and large. Curiously for the small & large models it specifies 80deg but for mine, the middle one, it specifies 60deg.

Again cheers for the above - has put my mind at rest a bit.

Tom