Unit goes under sure heat name also. My unit emitted unburnt gas smell the minute pilot started, and was annoying during burner operation. I discovered they built unit with primary pilot that had 2 ports. They used LP and sealed off natural gas,instead turning lp/nat knob on back activates second pilot for natural gas use. This means natural gas goes thru LP pilot orifice and burns slightly off during normal natural gas use(by design). The unused natural gas orifice has 1 air mix hole and the LP orifice has 2 air mix holes. I carefully plugged 1 of the holes in the LP orifice and suddenly pilot gas flame seated correctly on orifice port.Gone was the unburnt odor of natural gas. The typical flame in a flame appearance now was exhibited by the small pilot,secondary pilot remained consistent with manual picture. Of course, to use with LP I would have to open blocked air mix hole in addition to the other changes per manual. Hope this helps someone with similar condition.
Answers & Comments
Unit goes under sure heat name also.
My unit emitted unburnt gas smell the minute pilot started,
and was annoying during burner operation.
I discovered they built unit with primary pilot that had 2 ports.
They used LP and sealed off natural gas,instead turning lp/nat
knob on back activates second pilot for natural gas use.
This means natural gas goes thru LP pilot orifice and burns
slightly off during normal natural gas use(by design).
The unused natural gas orifice has 1 air mix hole and the LP orifice
has 2 air mix holes.
I carefully plugged 1 of the holes in the LP orifice and suddenly
pilot gas flame seated correctly on orifice port.Gone was the
unburnt odor of natural gas.
The typical flame in a flame appearance now was exhibited by
the small pilot,secondary pilot remained consistent with manual
picture.
Of course, to use with LP I would have to open blocked air mix
hole in addition to the other changes per manual.
Hope this helps someone with similar condition.