Part of the reason natural gas is now so prevalent is that it burns cooler than fuel oils and has no nitrogen in it, making it inherently a lower producer of NOx. Refineries have been mandated to reduce levels of sulfur, nitrogen and other pollutants in order to reduce emissions. Post-combustion control.
Best settings for a heating boiler aquastat control: Here we explain how to choose the best settings for a heating boiler aquastat - the combination control that sets boiler temperature and may also control hot water production via a tankless coil on the heating boiler.. We also give advice on how to set the aquastat controls if heating with a woodstove.
Off the floor: Wall-mount boilers are a space-saving option. | 2016-11-
Boiler Combustion | CleanBoiler.org
Guide to Low-Emission Boiler and Combustion Equipment
The emissions from natural gas-fired boilers and furnaces include nitrogen oxides (NOx), carbon monoxide (CO), and carbon dioxide (CO 2 ), methane (CH 4 ), nitrous oxide (N 2 O), volatile organic compounds (VOCs), trace amounts of sulfur dioxide (SO 2 ), and particulate matter (PM).
1.4 Natural Gas Combustion - US EPA
Many companies went much further in the production of wall mounted gas boilers. Today they are ready to offer units in more than one color, thus allowing matching the appliance to its future surroundings. Easy Handling. This is one of the benefits of wall mounted gas boilers. Due to a compact size these heating units are easier to handle.