Please click on attachments to view a very well written article with illustrations as to why Propane (LP) gas regulators freeze up and how to best avoid it .
Laars MFTCW, MFTHW, FTCF AND FTHF ALL SIZES Combustion Analysis Result #'s streamlined for best results: All Adjustments are to be performed and tested in LOW FIRE ONLY NATURAL GAS LOW FIRE CO2 Carbon Dioxide= 8.5%-8.8% O2 Oxygen=5.5%-5.8% Excess ...