Smart Thermostat Fall Setup Guide for Ontario Homes
Your Thermostat Still Thinks It's Summer: A Fall Smart Thermostat Guide for Ontario HomesIt's the first cold morning of the season. You...
● SUPPLY & INSTALL ACROSS THE GTA
Heating & cooling, supplied and installed across the GTA.
Furnaces, AC, heat pumps, boilers and water heaters for homes, condos and businesses — upfront installed prices, rebates handled for you.
- Upfront installed prices
- Rebates applied for you
- Ships Canada-wide
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LIMITED-TIME OFFERS
Save more on your new system
Current promotions and financing on select systems — available for a limited time only.
ENDS DEC 31
Up to $600 off Rinnai combi boilers
Heat and hot water from one compact unit — installed.
FINANCING
Carrier AC / Heat Pump — 0% for 12 Months
$0 down. 12 equal, predictable payments.
BEST SELLERS
Popular systems, installed
Carrier Comfort 26SCA4 Air Conditioner | Up to 16 SEER2 | 1.5–5 Ton | GTA Supply & Install
Price range: $3,550.00 through $5,890.00Carrier Comfort Series Air Conditioner R410-A Puron
Price range: $3,390.00 through $4,990.00
💳 6 Months 0% Interest
Carrier Crossover AC/Heat Pump 17.4 SEER2 High Heat Capable (Rebate-Qualified)
Price range: $5,116.00 through $8,596.00Carrier 59TP7A Performance 97% AFUE Two-Stage Variable-Speed Condensing Gas Furnace
Price range: $55.00 through $3,986.21Carrier AC/Heat Pump + Carrier Performance Furnace Package
Price range: $9,782.00 through $13,457.00Carrier Performance Two-Stage High-Efficiency Gas Furnace – 59TP6
Price range: $3,090.00 through $5,290.00Goodman GR9T96 Two-Stage Multi-Speed ECM Gas Furnace
Price range: $55.00 through $2,539.00Lennox Elite Furnace , EL297V, 2-Stage Variable Speed
Price range: $2,709.00 through $3,319.00Carrier AC/Heat Pump + Carrier Performance Furnace Package
Price range: $9,782.00 through $13,457.00 Carrier Crossover AC/Heat Pump 17.4 SEER2 High Heat Capable (Rebate-Qualified)
Price range: $5,116.00 through $8,596.00Navien Combi Boiler NCB-H Series Condensing | High Efficiency Heating & Endless Hot Water
Price range: $3,224.00 through $4,148.00Rinnai I-Series Condensing Combination Boiler | All-in-One Heating and Hot Water
Price range: $2,890.00 through $4,199.00Rinnai I-Series Plus Condensing Heat-Only Gas Boiler
Price range: $3,380.00 through $8,799.00Toronto, Vaughan, Markham, Richmond Hill, Mississauga
Commercial HVAC Solutions for Buildings & Businesses
Keep your building comfortable and efficient with professional commercial HVAC installation, replacement, and maintenance from 4Most Energy.
We service condos, offices, retail plazas, and commercial properties across the GTA with reliable systems and expert care.
Condo & High-Rise Buildings
Heat pump replacement, central loop optimization, cooling tower maintenance
Offices & Professional Suites
Energy-efficient HVAC retrofits, ductless systems
Light Industrial / Warehouses
Unit heaters, radiant tube systems, ventilation upgrades
Retail & Plaza Units
Rooftop unit installation, split systems, thermostat zoning
Commercial Spas & Pools
Dehumidification systems, pool heater services, energy recovery solutions
Restaurants & Cafés
Dehumidification systems, pool heater services, energy recovery solutions
BOILERS
Whether you’re replacing an old floor-standing boiler, buying out a rental, or switching from a hot water tank to a high-efficiency combi boiler, 4Most Energy supplies and installs boilers for houses, condos and townhouses across Toronto, Vaughan, Richmond Hill, Markham and Mississauga.
We size every boiler to your home’s heat loss, so you get steady heat and reliable hot water without paying for capacity you don’t need — with upfront installed prices and rebates handled for you.
HEAT PUMPS
A heat pump heats your home in winter and cools it in summer with one efficient system. Cold-climate models like the Carrier Crossover are built for Ontario winters and are rebate-qualified, so you can cut energy use without giving up comfort.
4Most Energy supplies and installs ducted, ductless and condo heat pumps across the GTA — with upfront installed prices, $0 down and 0% financing for 12 months on Carrier systems, and rebate paperwork handled for you.
Heats & cools
One system, all year
Up to 17.4 SEER2
Carrier Crossover
Rebates
Applied for you
HOW IT WORKS
From quote to comfort in 3 steps
01
Pick your system
Browse upfront installed prices, or tell us your home size and we recommend the right model.
02
We confirm & schedule
An expert confirms sizing and fit, then books your installation at a time that works for you.
03
Installed, rebates handled
Our team installs it and applies for the rebates you qualify for. Financing from $0 down.
WHO WE SERVE
Homes, condos & businesses
WHERE WE WORK
Installed in the GTA. Shipped across Canada.
Local installation and service across the Greater Toronto Area; plus equipment-only orders delivered anywhere in Canada.
Our recent installs
Trusted by Homeowners Across Ontario
What Ontario Homeowners Are Saying!
HVAC TIPS & GUIDES
OUR LATEST NEWS
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