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343 HVAC (343hvac.ca)

Services

Heating services for Ottawa homes

The three jobs a heating contractor is judged on, done properly for Ottawa winters: a new furnace that fits the house, a yearly service that keeps it there, and a repair that holds when it fails. The gas work, heat pumps and air-quality upgrades that go with them are handled too.

Furnaces, heat pumps, boilers, water heaters and gas lines

A technician checks the gas valve on a newly installed high-efficiency furnace with fresh sheet-metal ductwork in a finished basement

Installation

Furnace Installation & Replacement

Ottawa is among the coldest capitals in the world, and between November and April the furnace is the one appliance a house cannot be without. We replace worn-out furnaces and fit new ones that are measured to the home rather than copied from the old nameplate, across Ottawa, Kanata, Nepean, Orléans and the surrounding communities.

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A technician with a headlamp replaces the igniter inside an open gas furnace on a winter evening

Repair

Furnace Repair

A furnace that quits in an Ottawa cold snap needs a technician who finds the real fault the first time. We repair every make of gas and propane furnace, explain what failed and why, and put the price in writing before the part goes in. Same-day calls across Ottawa, Nepean, Stittsville and the surrounding communities.

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A technician checks flue gases with a combustion analyzer during a furnace tune-up

Maintenance

Furnace Maintenance & Tune-Ups

The first -20 night of the year is when Ottawa furnaces give up, because it is the first time all season they run flat out for hours. A proper service in the fall finds the weak igniter and the fouled flame sensor while the weather is still forgiving. We service furnaces in Ottawa, Barrhaven, Gloucester and the surrounding communities.

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A technician checks a cold-climate heat pump mounted on a wall bracket above the snow beside a brick Ottawa home

Heat pumps

Heat Pumps & Hybrid Systems

A cold-climate heat pump can carry an Ottawa house through most of the winter and cool it through a humid July. Paired with a gas furnace as a hybrid system, it uses whichever fuel is cheaper on a given day and hands over to the furnace when the mercury really drops. We install, service and repair ducted and ductless heat pumps in Ottawa, Kanata, Barrhaven and the surrounding communities.

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A wall-hung condensing boiler with a copper and PEX manifold in the utility room of an older brick Ottawa home

Boilers

Boilers & Radiant Heating

The brick and stone homes of Centretown, the Glebe, Sandy Hill and Old Ottawa South were built around hot-water radiators, and a surprising number still run on the boiler that came with the house. New infill and custom builds are choosing in-floor radiant for the same even warmth. We install, repair and service the boilers behind both, in Ottawa, Manotick and the surrounding communities.

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A technician commissions a wall-mounted tankless water heater while the old tank waits on a dolly for pickup

Water heaters

Water Heaters

The water heater shares the gas line and often the venting with the furnace, so it makes sense for the same technician to look after both. We install and repair gas tanks and tankless units and take over rentals across Ottawa, Nepean, Orléans and the surrounding communities.

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A lit gas fireplace in a stone surround on a snowy Ottawa evening, heavy snowfall through the window

Gas work

Gas Fireplaces & Gas Lines

Every gas appliance in an Ontario home, from the fireplace in the family room to the barbecue on the deck, has to be connected by a TSSA-certified technician. We service and install fireplaces and run gas lines for ranges, dryers, pool heaters, outdoor kitchens and generators across Ottawa, Stittsville, Gloucester and the surrounding communities.

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A technician seals a duct joint with mastic beside a new media filter cabinet and bypass humidifier

Air & ducts

Ductwork, Humidifiers & Air Filtration

A furnace can only heat the rooms its ducts actually reach, and a house at 15 percent humidity in January never feels warm at any thermostat setting. We seal, balance and extend ductwork and fit the humidifiers and filters that make an Ottawa winter bearable indoors, for homes in Ottawa, Kanata, Nepean and the surrounding communities.

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Which service fits the problem?

Unsure which page to read? Find the situation that sounds like yours. If none of them fits, call and describe what the system is doing, and the right visit gets booked from that.

  • The furnace has stopped, or it runs and the rooms stay cold.

    Book Furnace repair. Same-day visits where the schedule allows, and a written price before any part is replaced.

  • The furnace is past 15 years, or the repair estimate comes to a third or more of a new one.

    Book Furnace installation and replacement. Heat-loss sizing, an installed price in writing, and most swaps finished in one day.

  • Nobody has opened the furnace cabinet in over a year.

    Book Furnace maintenance and tune-ups. Combustion analysis, safety checks and a written report, ideally booked before the first cold snap.

  • You want cheaper shoulder-season heating, cooling in July, or the rebate money.

    Book Heat pumps and hybrid systems. A cold-climate heat pump on its own, or paired with the gas furnace you already have.

  • The house is heated by radiators or in-floor loops.

    Book Boilers and radiant heating. Condensing boilers, combi units, zone balancing and yearly service.

  • The hot water runs out, or a rental fee still shows up on every bill.

    Book Water heaters. Tank and tankless units installed and repaired, and rental contracts bought out.

  • One room never warms up, the winter air is dry, or a new gas appliance needs its own line.

    Book Ductwork and air quality, or gas lines. Duct sealing and humidifiers are on one page, fireplaces and gas lines on another.

Trusted by homeowners in Ottawa, Kanata, Orleans and the surrounding communities

A warm house in any Ottawa winter.

Phone for same-day service or send a message through the form. You will hear back quickly.