KeepRite · Air Conditioner

KeepRite N5A8T

The KeepRite N5A8T is a Canadian-built, two-stage central air conditioner rated up to 18 SEER2 and running on the new low-GWP R-454B refrigerant. For Toronto homeowners, the two-stage compressor means it can run on low most of the time, holding a steadier indoor temperature and a quieter outdoor unit than a basic single-stage AC. Megacity HVAC sizes and installs the N5A8T across the GTA, with a 10-year limited parts warranty when the unit is registered.

up to 18SEER2

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KeepRite N5A8T Performance two-stage air conditioner

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Why Toronto Homeowners Choose the KeepRite N5A8T

Two-stage cooling: the unit spends most of its run time on the lower stage, which reduces temperature swings and removes more humidity during Toronto's muggy summers

Efficiency up to 18 SEER2 — a solid step above entry-level single-stage units for lower summer running costs

Built on R-454B, a low-GWP refrigerant, so the system is aligned with current refrigerant standards rather than older blends

10-year limited parts warranty when the unit is registered, backing the Canadian-built hardware

A Good Fit If

Homeowners who want more even, comfortable cooling than a single-stage AC delivers, without paying for a full variable-speed system

Households sensitive to outdoor noise — the N5A8T runs as low as 69 dB, helpful on tight Toronto lots and near bedroom windows

Anyone replacing an aging AC and wanting equipment built on the current R-454B refrigerant rather than older phased-out blends

Buyers who value Canadian-built equipment at a fair mid-tier price point

Manufacturer Specs

Series: Performance
Efficiency: Up to 18 SEER2
Cooling stage: Two-stage
Sound level: As low as 69 dB
Refrigerant: R-454B (low-GWP)
Sizes: 2 – 5 tons
Parts warranty: 10-year limited (with registration)

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Specs published by KeepRite.

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Maintenance and repairs included for the term
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Common Questions

KeepRite N5A8T — FAQ

How efficient is the KeepRite N5A8T?

It's rated up to 18 SEER2. That's a meaningful improvement over basic single-stage air conditioners, which lowers what it costs to run through a Toronto summer. Actual efficiency depends on correct sizing, ductwork, and installation quality.

What size N5A8T do I need for my home?

The N5A8T comes in 2 to 5 ton capacities. Sizing isn't based on square footage alone — it depends on your home's layout, insulation, windows, and ductwork. We perform a load calculation before recommending a tonnage, since an oversized AC short-cycles and an undersized one can't keep up on the hottest days.

Why does the two-stage compressor matter for comfort?

A two-stage compressor runs on a lower stage most of the time and only ramps to full output on the hottest days. Those longer, gentler low-stage runs hold a more even temperature and pull more humidity out of the air than a single-stage unit that cycles fully on and off. It also tends to be quieter — this model runs as low as 69 dB.

What warranty comes with the N5A8T?

It carries a 10-year limited parts warranty, but that coverage applies when the unit is registered after installation. We handle the registration as part of the install so you get the full term. Note that a parts warranty covers components, not labour — ask us how labour coverage works on your installation.