

When a severe Ontario winter storm hits, your furnace isn’t just an appliance — it’s your home’s defensive line. A poorly configured heating system will short-cycle, create freezing draft zones, and blow through your winter utility budget. At Twintech Heating & Cooling, twin brothers Greg and Grant Dainty do away with industry fluff to bring you straightforward, meticulously engineered heating replacements across Pickering, Ajax, Whitby, Oshawa, Bowmanville, Scarborough, and Markham. Backed by a third-generation trade legacy, we install your system correctly the first time so your household can stay completely safe and warm.
We install Canada’s most dependable, whisper-quiet gas furnaces, matching the equipment perfectly to your property’s ventilation needs and monthly budget.
Whether you are looking for an ultra-efficient variable-speed model or a rugged single-stage option, we supply industry-leading brands that stand up to extreme winter freezes. We verify gas pressure tolerances, configure proper airflow metrics, and clear legacy ventilation paths to guarantee flawless, long-term performance.

You benefit from three generations of HVAC expertise.
Your home modification is handled entirely by fully insured, in-house experts.
Smooth out your installation cost with easy financing plans via our partners.
A new furnace can only deliver optimal warmth if its fuel supply lines and air distribution pathways are perfectly tuned. As fully certified TSSA and HRAI member specialists, we manage every layer of your home’s heating infrastructure in-house. From modifying custom sheet metal ductwork, to laying down safe, code-compliant natural gas lines, we make sure your complete heating setup is airtight, legal, and optimized for maximum comfort.

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Don't wait until the deep freeze hits to upgrade an unreliable system. Contact Twintech today for a clear, straightforward installation quote.
Sorting through different heating options or managing a sudden furnace problem can bring up a lot of questions. To help you get clear, practical answers, Greg, Grant, and the Twintech team have put together honest breakdowns to the questions your neighbours ask most about furnace installations, fuel conversions, and keeping utility costs low.
If your furnace is under 12 years old and experiencing a minor component issue, a quick repair is usually best. However, if your system is over 15 years old, constantly requires service calls during cold snaps, or your heating bills are climbing steadily, replacing it with a high-efficiency single or two-stage unit is the smarter, more cost-effective choice.
AFUE (Annual Fuel Utilization Efficiency) measures how efficiently a furnace converts gas into heat. For example, a standard old furnace might have an 80% AFUE rating, meaning 20% of your money escapes right up the chimney. Upgrading to a modern 95% or higher high-efficiency furnace ensures almost every dollar you spend goes directly into warming your home.
Yes, absolutely. We specialize in designing forward-compatible “dual-fuel” or hybrid heating systems. Installing a high-efficiency furnace now sets a perfect foundation to add a central electric heat pump later on, allowing you to use clean electricity during the spring and fall, and save the gas furnace for deep winter freezes.
We make the entire process evergreen and stress-free. Our Pickering office continually tracks local HVAC regulations and active provincial conservation rebate programs. We confirm your project’s qualification status upfront, manage all municipal TSSA gas line permit documentation safely, and handle the final application filings for you.