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Blog: Appliance & HVAC/R News & Updates

Why should you change your oil filter in your furnace or boiler system?

Why should you change your oil filter in your furnace or boiler system?

Posted by McCombs Supply on 20th Oct 2026

Whether you are a field technician doing a seasonal tune-up or a handy DIY homeowner tackling weekend maintenance, changing the heating oil filter is a step you can’t afford to skip. Over time, fuel tanks naturally gather trouble—think rust flakes, thick sediment, and condensation moisture. Leaving a dirty filter in place forces the oil pump and burner to struggle just to pull fuel thr … read more
Odor Neutralizer for your HVAC System

Odor Neutralizer for your HVAC System

Posted by McCombs Supply on 12th Jun 2026

This is a popular product that we just got back in stock!  Nu-Calgon HVAC Odor Block What is the HVAC Odor Block and how does it work? Nu-Calgon's HVAC Odor Block is an odor neutralizer that sits inside your HVAC system's filter compartment where it gets distributed through the venting system in your home, neutralizing odors and restoring clean air. It's not a perfume smelling mask or cover-u … read more