Heat pump

Heil Heat pump N5H8T--C Performance 18 Two-Stage Coastal Heat Pump

Schedule Service Check Availability

Heil Residential HVAC Heat pump Repair, maintenance, and replacement planning

Technical Specifications

Product Specs

Brand: Heil
Official model: N5H8T--C
Official product name: Performance 18 Two-Stage Coastal Heat Pump
Product category: heat-pumps
Series: value
Cooling Efficiency = Up to 18 SEER2 / 14 EER2
Heating Efficiency = Up to 8.5 HSPF2
Sound = Sound as low as 69 decibels
High Efficiency
Quiet Operation
Timely registration required for 10-year parts limited warranty. Limited warranty period is 5 years if not registered within 90 days of installation. Jurisdictions where warranty benefits cannot be conditioned on registration will receive the registered limited warranty periods. Please see warranty certificate for further details and restrictions.
Dual fuel capable with a compatible gas furnace and thermostat for energy-saving heating
Durably built to withstand bad weather and debris
Designed for salty air corrosion resistance and lasting performance
R-454B refrigerant continues our legacy of dedication to environmental stewardship. This refrigerant achieves a remarkable 75% reduction in global warming potential while preserving the non-ozone depleting properties of our previous refrigerant.
Wi-Fi ® enabled remote access with the Ion™ Gray Smart Thermostat
10-Year Parts Limited Warranty +
High-efficiency two-stage scroll compressor
Variable-speed fan motor
System protecting high-and low-pressure switches and filter drier
Durable, protective inlet grille panels allow easy coil cleaning
Baked-on powder coat finish over galvanized steel
Compatible with humidity sensing thermostats
Non-ozone depleting, low global warming potential R-454B refrigerant
Cooling capacity: 2–5 tons
Official source: Heil product page
Model or series: N5H8T--C Performance 18 Two-Stage Coastal Heat Pump
Equipment type: Heat pump
Product group: Residential HVAC
System role: Heat pump equipment for heating and cooling
Application: Residential, light-commercial, or managed-property comfort applications
Compatibility check: Match with compatible indoor unit, coil or air handler, controls, refrigerant, voltage, and capacity.
Verified source: heil-hvac.com

Useful troubleshooting details

Confirm the outdoor heat pump model, serial number, matched indoor equipment, auxiliary heat setup, thermostat or communicating control, refrigerant, voltage, and capacity.
Share no-heat, no-cooling, outdoor icing, defrost behavior, short cycling, weak airflow, control alerts, or unusual noise.
For upgrade planning, note whether the project involves ducted, ductless, hybrid, cold-climate, or fossil-fuel-to-heat-pump options.

Service planning

How GreenFlow handles N5H8T--C Performance 18 Two-Stage Coastal Heat Pump requests

Identify the equipment

Confirm the model or series name, serial number if available, photos, and whether the unit is roof, exterior, basement, or mechanical-room equipment.

Describe the service issue

Share no heat, no cooling, weak airflow, error codes, alarms, leaks, noise, control problems, or comfort complaints.

Review access and history

Include access notes, tenant or business-hour constraints, filter status, recent repairs, and maintenance records when available.

Plan the next step

GreenFlow can route the request for diagnostics, repair planning, maintenance, replacement scope, or related system upgrades.

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Randy J.

Thanks to Andrey for an amazingly quick response to my request for a service call. He diagnosed and fixed my issue within 24 hours of my asking for help. Excellent service. Thanks.

John F.

I needed 2 new AC units and decided to go with high efficiency heat pumps. I chose Greenflow because of the equipment they offered, and the price (2nd lowest quote and much cheaper than the average of all quote we received). Their technicians were very detail oriented and...

Michael C.

always available, easy to get a hold of, as a property manager I get lots no heat emergency, usually get to it same day or next day

Neal V.

In an industry that often fraught with contractors taking advantage of homeowners, Andrey was honest with his assessment and willing to install a product acquired elsewhere (most want that margin themselves), patiently answered my questions (I’m an engineer so like to understand what’s happening), and proactively offered practical...

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