What We Do With Reznor Unit Heaters
All Systems designs and installs Reznor unit heating systems for commercial warehouses, manufacturing facilities, automotive service bays, agricultural buildings, and industrial spaces throughout Dutchess and Ulster counties. Reznor is the industry-standard brand engineered for commercial durability and continuous operation. Installation begins with detailed load calculations based on space dimensions, ceiling height, insulation quality, Dutchess County outdoor design temperature of approximately minus 15 degrees Fahrenheit, and acceptable warm-up time. We assess mounting location structural capacity and design reinforcement if required for wall or ceiling installation. / For gas-fired Reznor installations, we run natural gas supply lines from the building's main gas meter with proper sizing based on total BTU demand and supply pressure, install a manual shut-off valve and pressure regulator at the unit, run properly sized flue pipe to the exterior with minimum 3-foot clearance above roof peak and 10-foot clearance from windows and doors per code, and establish combustion air supply either from the heated space or dedicated fresh air intake. For electric Reznor units, we run electrical service from the main panel with appropriate breaker and wire sizing for heating element and blower motor power draw. All installations include thermostat wiring allowing independent temperature control by unit or zone. / We commission every Reznor installation by verifying proper burner ignition and flame quality on gas models, testing thermostat response and temperature setpoint accuracy, checking all gas connections for leaks using soap solution at every joint, measuring flue gas temperature and oxygen content to confirm safe and efficient combustion, testing electrical safety grounding and circuit integrity, and confirming proper heat distribution into target zones without dead spots. For large facilities with multiple Reznor units, we coordinate layout and thermostat control to ensure even heat coverage and efficient operation. We educate facility managers on seasonal operation strategies, proper thermostat settings that balance comfort and energy cost, filter maintenance on gas models, and critical annual service requirements. / For existing Reznor unit heater repair and maintenance, we handle burner ignition failures, thermostat malfunction or drift, blower motor problems including bearing wear, heat exchanger corrosion or blockage from dust or insect debris, gas pressure regulation issues, venting blockages from snow accumulation or animal nests, and safety component failures. Annual maintenance—essential for warranty coverage and safe operation—includes thorough burner inspection and cleaning, heat exchanger cleaning and inspection, air filter replacement, thermostat calibration, safety valve and gas train testing, and flue pipe inspection for corrosion or blockage. Gas Reznor units require annual service to maintain safe combustion and prevent carbon monoxide hazards. We troubleshoot operational issues including inadequate heat output caused by undersizing or clogged heat exchangers, excessive noise from loose mounting or bearing wear, short-cycling from thermostat drift, and control failures preventing normal operation.

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ABOUT
ALL SYSTEMS HEATING & COOLING
who we are
All Systems Heating & Cooling is a local family-owned & operated HVAC company based in Poughkeepsie, NY. For over 20 years, serving Dutchess County and the greater Hudson Valley with reliable heating and cooling work. Handling installation, maintenance, and repair for homes and small businesses.
Why Dutchess COUNTY property owners Choose Us
Licensed & Insured ⛨
20+ Years In Business ◷
100+ Satisfied Clients ✓



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What Clients Say about us..
"I needed a replacement Central A/C and Heat Pump. They were able to come sooner than first anticipated, were neat, polite and professional. A true pleasure to have in my home for the 5 hours or so. Thoroughly explained what was being replaced, did not speak condescendingly, listened to my concerns. I would highly HIGHLY recomend them."
- Stazia W.
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"Thank you for helping me fix all the issues with my heating."
- s Maria
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"Highly recommend this company, Fast, efficient, affordable and highly knowledgeable."
- Helen C.
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