Coleman-Mach Electric Heat Strip | 5,600 BTU | 37203-4551 45303-4551

Take the chill off without the furnace. A Coleman-Mach Heat Strip drops into a heat-ready ceiling assembly and adds 5,600 BTU/hr of electric heat through the existing louvers — enough for cool mornings on shore power.

⚠️ Choose by Unit and Check the Control Box

• 37203-4551 — medium and low-profile Coleman-Mach units
• 45303-4551 — Mach 10 International Series

Requires a heat-ready ceiling assembly and control box (e.g. 8430A635, 9430-725 assemblies with the 9330C755 heat-capable box). Cool-only control boxes (8330-752) will not run a heat strip. None of these fit the Mach 8 / 47xxx ultra-low-profile units, which use the 47233-4551 kit.

Key Features

• 5,600 BTU/hr electric heat
• Installs in heat-ready ceiling assembly
• Runs on shore power — no propane
• Limited 2-year warranty — 90-day on 45303-4551

Specifications

• Brand: Coleman-Mach
• Type: Electric Heat Strip
• Output: 5,600 BTU/hr
• Options: 37203-4551 & 45303-4551