LocationSo. Cal. ExperienceThirty seven years in the HVAC trade, Nate certified in A/C and Heat pumps, RSES certified in heat pumps, universal certified for refrigerant as well as Puron, worked on every thing from 300 ton chillers to domestic refrigerators, commercial low temp. refrigeration, commercial and residential heating and air conditioning service and installation, licensed contractor C-20 for twenty nine years. Mini BioHVAC contractor