Reviewed by Jeren Hamlin — Our Licensed HVAC Expert
Every buying guide and product explainer on Furnace Direct is reviewed by a licensed mechanical contractor — so the advice you read is grounded in real field experience, not marketing.
Jeren Hamlin
Licensed Mechanical Contractor · License #CAC1820468
Jeren is the contractor behind Furnace Direct (operated by Hamlin Mechanical LLC). He has spent years installing and servicing residential and light-commercial HVAC — gas furnaces, air conditioners, heat pumps, mini-splits, and indoor air quality systems — across Minnesota and Southwest Florida.
On Furnace Direct he reviews our technical content for accuracy: sizing guidance, compatibility, install considerations, and which parts actually solve which problems. If a guide says a part fits a 1–3 ton single-phase system, it’s because that’s what the spec sheet and the field both say.
Credentials
- Licensed mechanical contractor (#CAC1820468)
- Hands-on HVAC install & service experience
- Furnace, AC, heat pump, mini-split, and IAQ systems