How efficient is the N5A8T compared to a single-stage AC?

At up to 18 SEER2, the N5A8T is a real step up from a typical single-stage unit in the 13–14.3 SEER2 range. The two-stage compressor is the main reason — running on a lower output most of the time uses less energy than the full-on/full-off cycling of a single-stage system.

Is KeepRite a reliable brand?

KeepRite is a Canadian-built HVAC brand with a long track record in the Ontario market. It's one of the brands we install regularly alongside Lennox, Trane and York — we'll recommend it when it fits your home and budget, not by default.

What size N5A8T do I need?

It's available from 2 to 5 tons. We size it based on your home's actual heat gain — insulation, window area, orientation and square footage — through an in-home assessment rather than matching whatever tonnage is currently installed.

Does the N5A8T qualify for ENERGY STAR or a rebate?

It is not ENERGY STAR certified on the manufacturer's published spec sheet, and standard central air conditioners aren't part of Ontario's current electrification rebate programs regardless. If a rebate matters to your decision, ask us about heat pump alternatives.

What warranty comes with the N5A8T?

KeepRite backs the parts with a 10-year limited warranty once the unit is registered after installation — we handle that registration on install day.

KeepRite · Air Conditioner

KeepRite N5A8T

Name: KeepRite N5A8T
Brand: KeepRite

The KeepRite N5A8T is a Canadian-built, two-stage central air conditioner rated up to 18 SEER2 and built on the newer R-454B refrigerant. It's a strong middle-ground option — more efficient and quieter than a single-stage unit, without the price of a fully variable-capacity system. Imperial Heating installs the N5A8T across York Region, Durham and the GTA.

up to 18SEER2

Get a Free Quote (647) 852-2359

KeepRite N5A8T Performance two-stage air conditioner

Why Homeowners Choose the KeepRite N5A8T

Up to 18 SEER2 — meaningfully more efficient than a standard single-stage AC

Two-stage cooling runs low most of the time and only ramps to full capacity on the hottest days

Sound levels as low as 69 dB, quieter than many single-stage outdoor units

Runs on R-454B, the current low-global-warming-potential refrigerant standard, with a 10-year limited parts warranty when registered

A Good Fit If

Homeowners who want two-stage comfort at a lower price point than premium variable-capacity systems

Buyers who prioritize a Canadian-built system, engineered with Ontario's climate in mind

Households in 2 to 5-ton homes looking for a dependable mid-tier replacement

Anyone whose current unit still runs the phased-out R-22 refrigerant and needs a modern-refrigerant upgrade

Manufacturer Specifications

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)

Get a free quote on the KeepRite N5A8T (647) 852-2359

Specifications published by KeepRite. View manufacturer spec sheet

KeepRite N5A8T — Frequently Asked Questions

Common questions homeowners ask about the KeepRite N5A8T before booking an install.

More Air Conditioners We Install

See our air conditioner services

Get In Touch

Get a Quote on the KeepRite N5A8T

Tell us about your home and we'll give you honest pricing and sizing for the KeepRite N5A8T — installed across York Region, Durham, Simcoe and the GTA. Every quote is written, not verbal.

Call 24/7(647) 852-2359

KeepRite N5A8T

up to 18SEER2

Why Homeowners Choose the KeepRite N5A8T

Up to 18 SEER2 — meaningfully more efficient than a standard single-stage AC

Two-stage cooling runs low most of the time and only ramps to full capacity on the hottest days

Sound levels as low as 69 dB, quieter than many single-stage outdoor units

Runs on R-454B, the current low-global-warming-potential refrigerant standard, with a 10-year limited parts warranty when registered

A Good Fit If

Homeowners who want two-stage comfort at a lower price point than premium variable-capacity systems

Buyers who prioritize a Canadian-built system, engineered with Ontario's climate in mind

Households in 2 to 5-ton homes looking for a dependable mid-tier replacement

Anyone whose current unit still runs the phased-out R-22 refrigerant and needs a modern-refrigerant upgrade

KeepRite N5A8T

Why Homeowners Choose the KeepRite N5A8T

A Good Fit If

Manufacturer Specifications

KeepRite N5A8T — Frequently Asked Questions

More Air Conditioners We Install

Get a Quote on the KeepRite N5A8T

Get a free quote

IMPERIAL HEATING & COOLING TORONTO

Heating

Cooling

Resources

Company

Partners

KeepRite N5A8T

Why Homeowners Choose the KeepRite N5A8T

A Good Fit If

Manufacturer Specifications

KeepRite N5A8T — Frequently Asked Questions

More Air Conditioners We Install

Get a Quote on the KeepRite N5A8T

Get a free quote