Home Heating Assessment

[Andy Hall]

Nah.

Just a normal one and perhaps the burner pressure is set for less than max rated output

[Nigel Molesworth]

Good point. I was wondering the same.

How does it work with gas boilers, do you change a jet like on oil?

[Andy Hall]

AIUI, the only time that a burner/jet is changed is if converting between natural gas and LPG.

There are range rated conventional boilers which have minimum and maximum settings. Normally, an adjustment on the gas valve for burner pressure adjusts them - at least on the simple ones.