Western Heating & Cooling optimizes the performance and energy efficiency of heating and cooling systems that operate in the dry climate of the Western USA.
Microfiber cloth filtered out 70% of particles; old heavyweight t-shirt, shop towel, and shop rag performed poorly. Thanks @isjinpan and @charbelEharb !
Air-source heat pump technology has come a long way in the last 10 years:
"technological advancements have now yielded hundreds of models that can operate efficiently in temperatures as low as 5°F, with some units performing down to -12°F" —@RockyMtnInst
https://t.co/baToa3Tg8W