Description
Why Choose the MRCOOL Signature Series 5 kW Heat Kit?
The MRCOOL Signature Series Heat Kit 5 kW Air Handler ONLY adds electric resistance heating capability to your MRCOOL Signature Series multi-position air handler. This heat kit is essential for installations in climates where the heat pump alone may not provide sufficient heating during extreme cold weather events, or for applications requiring backup/emergency heat. The 5 kW heat kit provides 17,065 BTU of supplemental electric heat, making it ideal for smaller homes and spaces up to approximately 700 square feet.
About the MRCOOL Signature Series 5 kW Heat Kit
The MRCOOL Signature Series Heat Kit (MAHK-05-O) is a factory-compatible electric resistance heating element designed to install directly into the MRCOOL Signature Series multi-position air handler. Installation requires a licensed HVAC technician and an electrician to provide the appropriate dedicated electrical circuit. The heat kit integrates seamlessly with the air handler's control board and is activated automatically by the thermostat when supplemental or emergency heat is called for. Compatible with Signature Series air handlers in the 18K–60K BTU range.
? Technical Specifications
| Specification | Value |
|---|---|
| Brand | MRCOOL |
| SKU | MAHK-05-O |
| Series | Signature Series Heat Kit |
| Type | Air Handler ONLY |
| Heating Capacity | 5 kW (17,065 BTU) |
| Voltage | 208-240V |
| Amperage | 20.8A @ 240V |
| Compatible Air Handlers | MRCOOL Signature Series Multi-Position Air Handlers |
| Installation | Professional installation required |
| Weight | 5.0 lbs (2.3 kg) |
? Pro Installation & Usage Tips
- Professional installation by a licensed HVAC technician is required for heat kit installation.
- A dedicated 240V electrical circuit is required — consult an electrician before installation.
- The 5 kW heat kit is ideal for supplemental/emergency heat in systems up to approximately 30K BTU.
- For larger systems or colder climates, consider the 10 kW heat kit (MAHK-10-O) for greater supplemental heating capacity.
- Verify compatibility with your specific air handler model before ordering.
❓ Frequently Asked Questions
The MAHK-05-O is compatible with MRCOOL Signature Series Multi-Position Air Handlers (MWMAH series). Verify compatibility with your specific model number before ordering.
Yes. Heat kit installation requires a licensed HVAC technician and an electrician to provide the appropriate dedicated 240V electrical circuit. Do not attempt DIY installation.
The 5 kW heat kit requires a dedicated 208-240V circuit with a minimum 25A breaker. Consult an electrician to verify your electrical panel can support the additional load.
The 5 kW heat kit (MAHK-05-O) provides 17,065 BTU of supplemental heat and is suitable for smaller spaces or mild climates. The 10 kW heat kit (MAHK-10-O) provides 34,121 BTU and is better suited for larger spaces or colder climates.
The MRCOOL Signature Series Heat Kit is covered by MRCOOL's standard 5-year parts warranty when registered within 30 days of installation.
? Warranty & Registration
| ? Parts Warranty | 5-year (registered), 1-year (unregistered) |
| ⚙ Registration | Register within 30 days of installation |
| ✅ Electrical | 208-240V, dedicated circuit required |
