The CENTRALHK20 is a 20 kW auxiliary heat kit for the MRCOOL Central Ducted Air Handler. It measures 10.16 in D x 8.03 in H x 21.06 in W and runs on 208/230 V power.
Highlights
- 20 kW auxiliary heating element delivers the largest electric backup output in this MRCOOL heat kit range.
- 208/230 V operation matches the supply already serving this equipment.
- Published minimum circuit ampacity of 46/53 and max fuse breaker of 50/60 let an electrician size the circuit before install.
- Compact 10.16 in D x 8.03 in H x 21.06 in W body fits inside the air handler cabinet.
- 10.1 lb net weight keeps the kit manageable during installation.
Specs & Features
| Dimensions |
10.16 in D x 8.03 in H x 21.06 in W |
| Unit Type |
Accessories |
| Equipment Type |
Heat Kit |
| Voltage |
208/230 V |
| Max Fuse Breaker |
50/60 |
| Min Circuit Ampacity |
46/53 |
| Auxiliary Heater Sizes |
20kw |
| Net Weight |
10.1 lbs |
| Gross Depth |
14.37 in |
| Gross Height |
10.24 in |
| Gross Width |
24.02 in |
| Gross Weight |
15.7 lbs |
| Returns |
Final sale — MRCOOL accessories are non-returnable |
- Accessory heat kit that installs into the air handler rather than operating as a standalone unit.
- Dual electrical values reflect the 208 V and 230 V supply options.
- Confirm your air handler model and available electrical capacity before ordering.
Details
Avermont Direct is an authorized MRCOOL dealer, and this heat kit ships as genuine MRCOOL equipment backed by the manufacturer's warranty — see product documentation for full terms. A 20 kW kit suits larger ducted homes that need substantial supplemental electric heat on cold days, when a heat pump alone needs help holding the setpoint. Sizing and installation should be handled by a qualified HVAC technician working from the documentation supplied with the unit.
Need Help?
If you are unsure which heat kit size suits your system, we are glad to walk through it with you.
If you have questions about this product before you order, our team is happy to help.
Email: support@avermontdirect.com
Phone: +1 (844) 455-3695
Hours: Monday–Friday, 9AM–5PM
Live Chat: Available 24/7
