Energy basics
Home Energy 101: How to Lower Energy Bills in Ontario
How to lower energy bills in Ontario: where your home's energy goes, how hydro and gas bills work, and which low-cost and major upgrades usually pay off first.
, 6 min read
Learning centre
Guides
86 evergreen guides written for Ontario homes and reviewed when prices or programs change. Start with a topic below.
Last reviewed November 2, 2026
How we review content
Energy Basics
kWh vs. kW, where your energy goes, and the first steps every household should take.
Energy basics
Buying an Energy Efficient New Home in Ontario: Labels, Questions and Upgrades
How to buy an energy efficient new home in Ontario: what the Building Code covers, ENERGY STAR, R-2000 and Net Zero labels, and builder questions to ask first.
, 6 min read
Energy basics
Energy Bill Help for Seniors in Ontario: Programs, Price Plans and Safe Savings
Energy bill help for seniors in Ontario: OESP, LEAP and free upgrade programs, the right price plan when you're home all day, and staying safe in winter.
, 6 min read
Energy basics
Home Buyer Energy Checklist for Ontario: What to Check Before You Buy
A home buyer energy checklist for Ontario: furnace and AC age, rental contracts, insulation, electrical service and utility bills to check before an offer.
, 6 min read
Energy basics
kWh vs kW Explained: What Your Ontario Hydro Bill Is Measuring
kWh vs kW explained in plain language: power versus energy, how to work out what an appliance costs to run in Ontario, and how tons, BTUs and m³ compare.
, 6 min read
Heating & Cooling
Heat pumps, furnaces, air conditioning, hybrid systems, thermostats and maintenance.
Heating & cooling
Heat Pumps in Ontario: The Complete Homeowner's Guide
How heat pumps work in Ontario's climate, what they cost to buy and run, which rebates apply in 2026, and how to decide if one makes sense for your home.
, 7 min read
Heating & cooling
Air Conditioning Buying Guide for Ontario Homes
Central AC, heat pump, mini-split or window unit: how to choose cooling for an Ontario home in 2026, with SEER2 ratings, costs, sizing and refrigerant changes.
, 5 min read
Heating & cooling
Best MERV Rating for a Furnace Filter: An Ontario Homeowner's Guide
The best MERV rating for a furnace filter in most Ontario homes is 8 to 11, or 13 if your system can handle it. Filter types, change schedules, airflow risks.
, 5 min read
Heating & cooling
Boiler Replacement in Ontario: Condensing Boilers, Radiant Heat and Heat Pumps
Boiler replacement in Ontario explained: condensing and combi boilers, radiators and in-floor radiant heat, typical costs, upkeep, and when heat pumps can help.
, 5 min read
Heating & cooling
Cold-Climate Heat Pumps: How They Handle Ontario Winters
How cold-climate heat pumps perform from Windsor to Thunder Bay, what happens at −25 °C, how defrost and backup heat work, and which specs to check.
, 6 min read
Heating & cooling
Duct Sealing in Ontario: Is It Worth It, and How Is It Done?
Duct sealing in Ontario homes: how much air leaky ducts waste, mastic vs foil tape vs aerosol sealing, typical costs, and when sealing ducts is worth the money.
, 5 min read
Heating & cooling
Ductless Mini-Split Heat Pumps: A Guide for Ontario Homes
When ductless mini-split heat pumps make sense in Ontario, single vs multi-zone, 2026 costs, savings over electric baseboards, rebates and installation tips.
, 5 min read
Heating & cooling
Furnace Replacement in Ontario: When, What and How Much
Signs your furnace needs replacing, 2026 Ontario costs, the 95% AFUE rule, rent vs buy, and how to compare a new furnace with heat pump or hybrid options.
, 6 min read
Heating & cooling
Geothermal Heat Pump Cost in Ontario: Is Ground-Source Heating Worth It?
Geothermal heat pump cost in Ontario: typical installed prices, loop types, running costs vs gas and air-source, rebates, and when ground-source pays.
, 5 min read
Heating & cooling
Heat Pump Backup Heat Explained: Auxiliary, Emergency and Dual-Fuel Options
Heat pump backup heat explained for Ontario: how electric strips and gas furnaces back up a heat pump, what auxiliary and emergency heat cost, and sizing tips.
, 6 min read
Heating & cooling
Heat Pump Defrost Mode and Winter Care: Snow, Ice and What Is Normal
Heat pump defrost mode explained for Ontario winters: what steam and noise mean, how to keep snow and ice off the outdoor unit, and when to call a technician.
, 5 min read
Heating & cooling
Heat Pump Noise and Placement: Where to Put the Outdoor Unit
Heat pump noise and placement in Ontario: how loud outdoor units are, where to put them for neighbours, snow and efficiency, and fixing common noise problems.
, 6 min read
Heating & cooling
Heat Pump vs Gas Furnace in Ontario: What Does It Really Cost?
A worked 2026 comparison of annual heating costs for a heat pump vs a gas furnace in Ontario, with clear assumptions and the carbon charge removal.
, 6 min read
Heating & cooling
How to Choose an HVAC Contractor in Ontario
Licences, permits, quotes and red flags: a checklist for hiring a heating and cooling contractor in Ontario, plus rebate and consumer protection rules.
, 6 min read
Heating & cooling
How to Fix Cold Rooms in a House: Causes and Solutions for Uneven Heating
How to fix cold rooms in a house: find the real cause of uneven heating, from drafts and thin insulation to duct and airflow problems, and fix it in order.
, 6 min read
Heating & cooling
HRV vs ERV in Ontario: Choosing and Using Home Ventilation
HRV vs ERV for Ontario homes: how heat and energy recovery ventilators work, which suits your house, typical costs, settings, and the upkeep most people skip.
, 5 min read
Heating & cooling
HVAC Maintenance Checklist for Ontario Homes
A season-by-season maintenance checklist for Ontario furnaces, heat pumps, air conditioners and HRVs: what you can do yourself and what a pro should check.
, 6 min read
Heating & cooling
HVAC Sizing and Load Calculations: Getting It Right
Why proper heat loss and cooling load calculations matter in Ontario, how CSA F280 works, the risks of oversizing, and what to ask your contractor to provide.
, 6 min read
Heating & cooling
Hybrid (Dual-Fuel) Heating: Pairing a Heat Pump with Your Furnace
How hybrid heat pump and gas furnace systems work in Ontario, how to set the changeover temperature, what they cost, and when dual-fuel is the smart choice.
, 6 min read
Heating & cooling
Ideal Indoor Humidity in Winter in Ontario: Levels, Condensation and Fixes
The ideal indoor humidity in winter in Ontario is often 30–40%, lower in deep cold. How to measure it, stop window condensation, and choose a humidifier wisely.
, 5 min read
Heating & cooling
Smart Thermostats: What They Save and How to Set Them Up
How much a smart thermostat really saves in an Ontario home, how to set schedules for gas furnaces and heat pumps, compatibility checks and the $100 HRS rebate.
, 5 min read
Insulation & Building Envelope
Attics, basements, air sealing, windows, doors and home energy assessments.
Insulation & envelope
Air Sealing Your Ontario Home: Where the Leaks Are and How to Fix Them
Find and fix the air leaks that drive up Ontario heating bills: blower door tests, ACH50 targets, priority leak spots, DIY vs pro work and ventilation basics.
, 5 min read
Insulation & envelope
Attic Insulation in Ontario: R-Values, Costs and When It Pays
How much attic insulation an Ontario home needs, blown-in vs batt options, typical costs, air sealing first and the Home Renovation Savings rebate of $1,250.
, 6 min read
Insulation & envelope
Basement Insulation in Ontario: Methods, Moisture and Costs
How to insulate an Ontario basement safely: moisture control first, interior vs exterior options, rim joist sealing, R-20+ targets, typical costs and savings.
, 5 min read
Insulation & envelope
Crawl Space Insulation in Ontario: Sealed vs Vented and How to Do It Right
Crawl space insulation in Ontario explained: sealed vs vented crawl spaces, insulating walls or floors, vapour barriers, radon, frozen pipes and typical costs.
, 6 min read
Insulation & envelope
Energy-Efficient Window Coverings and Window Film: What Works in Ontario
Do energy-efficient window coverings and window film save money in Ontario? Compare cellular shades, curtains, shrink film, low-e film and exterior awnings.
, 5 min read
Insulation & envelope
Home Energy Assessments in Ontario: What Happens and Is It Worth It?
What an EnerGuide home energy assessment involves in Ontario, what it costs, how the blower door test works, and how assessments unlock larger rebates.
, 5 min read
Insulation & envelope
How to Prevent Ice Dams in Ontario: Air Sealing, Insulation and Attic Ventilation
How to prevent ice dams in Ontario: why they form, why attic air sealing matters more than ventilation, safe removal, and what roof heating cables really cost.
, 6 min read
Insulation & envelope
Insulating Existing Walls in Ontario: Options, Costs and Moisture Risks
A practical guide to insulating existing walls in Ontario homes: dense-pack, interior and exterior options, typical costs, moisture risks and when it pays.
, 6 min read
Insulation & envelope
Windows and Doors in Ontario: When Replacement Makes Sense
An honest look at window and door upgrades in Ontario: U-factors, ENERGY STAR ratings, typical costs, realistic savings, repair options and available rebates.
, 5 min read
Rates & Bills
Time-of-Use, Ultra-Low Overnight and Tiered pricing, and how to read hydro and gas bills.
Rates & bills
How to Reduce Your Hydro Bill in Ontario: A 15-Step Checklist
How to reduce your hydro bill in Ontario: a 15-step checklist covering price plans, base load, big appliances and help programs, with savings estimates.
, 6 min read
Rates & bills
Ontario Electricity Price Plans Explained: TOU, ULO and Tiered
Full Ontario electricity rate tables effective 1 November 2026 for Time-of-Use, Ultra-Low Overnight and Tiered plans, with worked examples on choosing a plan.
, 6 min read
Rates & bills
Delivery Charges on Your Ontario Hydro Bill: Why They Are So High
What the delivery charge on an Ontario hydro bill pays for, why it is mostly fixed, why rural Hydro One customers pay more, and what you can and cannot reduce.
, 6 min read
Rates & bills
Energy Retailer Contracts in Ontario: Should You Sign a Fixed-Rate Deal?
How energy retailer contracts in Ontario work, why fixed rates often cost more than the RPP or Enbridge supply, your rights and how to cancel a contract.
, 6 min read
Rates & bills
Global Adjustment in Ontario Explained: What It Is and Who Pays It
What the global adjustment is in Ontario, why it makes up much of the cost of power, how RPP homes pay it in their rates, and when it shows as its own line.
, 6 min read
Rates & bills
Green Button in Ontario: How to Download and Use Your Energy Data
How to use Green Button in Ontario to download your hourly hydro and gas data, what the files contain, and five practical ways to find savings in your usage.
, 5 min read
Rates & bills
The Ontario Electricity Rebate Explained: What the 15.7% Credit Means for Your Bill
How the Ontario Electricity Rebate works, who gets it, how the 15.7% credit is calculated from November 2026, and what the drop from 23.5% costs a typical home.
, 6 min read
Rates & bills
Understanding Your Ontario Gas Bill
A plain guide to Enbridge Gas bills in Ontario: customer, delivery, transportation and supply charges, the carbon charge removal, m³ to kWh and saving tips.
, 5 min read
Rates & bills
Understanding Your Ontario Hydro Bill, Line by Line
What each line on an Ontario hydro bill means: electricity, delivery, regulatory charges, HST and the 15.7% Ontario Electricity Rebate, with a sample bill.
, 6 min read
Rebates & Programs
Home Renovation Savings, income-qualified programs, federal updates and stacking rules.
Rebates & programs
Home Renovation Savings Program: The Complete Ontario Guide
Every Home Renovation Savings Program measure and rebate amount, eligibility, the assessment stream, 2026 deadlines, the net metering catch and how to apply.
, 7 min read
Rebates & programs
Free and Low-Cost Energy Programs for Income-Qualified Ontario Households
Ontario's income-qualified energy help explained: the Energy Affordability Program, Enbridge Home Winterproofing, Oil to Heat Pump Affordability, OESP and LEAP.
, 5 min read
Rebates & programs
How to Finance Home Energy Upgrades in Ontario
How to finance home energy upgrades in Ontario: free programs first, rebates, home equity, municipal loans, contractor financing and rentals, compared honestly.
, 5 min read
Rebates & programs
Municipal Home Energy Loans in Ontario: How Property Tax Loans Work
How municipal home energy loans in Ontario work: property tax (LIC) repayment, examples like Toronto and Ottawa, what to ask, pros, cons and selling your home.
, 6 min read
Rebates & programs
Stacking Energy Rebates in Ontario: What Combines and What Doesn't
How to combine Ontario energy rebates without losing eligibility: HRS stacking rules, the 100% cost cap, closed federal programs, sequencing and examples.
, 5 min read
Water Heating
Tank, tankless and heat pump water heaters, plus Ontario's rental contracts.
Water heating
Drain Water Heat Recovery in Ontario: How It Works and When It Pays Off
Drain water heat recovery in Ontario explained: how a DWHR pipe captures shower heat, typical savings and costs, and which homes and water heaters suit it.
, 5 min read
Water heating
Heat Pump Water Heaters in Ontario: Costs, Savings and Whether One Suits Your Home
Heat pump water heater Ontario guide: installed costs, savings vs electric and gas tanks, space and noise requirements, rebates and when it is worth switching.
, 6 min read
Water heating
Tankless Water Heaters in Ontario: Costs, Savings and Winter Performance
Tankless water heater Ontario guide: gas vs electric, real winter flow rates, installed costs, savings vs a tank, hard-water care and when a tank is better.
, 6 min read
Water heating
Water Heater Options in Ontario: Gas, Electric, Tankless and Heat Pump
Compare gas tank, tankless, electric and heat pump water heaters for Ontario homes: estimated running costs, install prices, venting, lifespan and rebates.
, 5 min read
Water heating
Water Heater Rentals in Ontario: Rent, Buy Out or Replace?
How Ontario water heater rentals work, what they really cost over time, buyout and removal fees, your consumer rights, and how to compare renting with owning.
, 5 min read
Appliances & Lighting
ENERGY STAR shopping, standby power and what everyday appliances really cost to run.
Appliances & lighting
Are Heat Pump Dryers Worth It in Ontario? Costs, Savings and Trade-offs
Are heat pump dryers worth it in Ontario? Real running costs, payback vs electric and gas dryers, ventless installs, drying times and the HRS appliance rebate.
, 6 min read
Appliances & lighting
ENERGY STAR Appliances in Ontario: What to Buy and When to Replace
How to read EnerGuide and ENERGY STAR labels, estimated running costs for fridges, dryers and more, when replacement pays off, and the HRS appliance rebate.
, 5 min read
Appliances & lighting
Hot Tub Electricity Cost in Ontario, Plus Pool Pump and Heater Costs
Hot tub electricity cost in Ontario, estimated, plus pool pump and pool heater costs, and how covers, variable-speed pumps and off-peak timing cut them.
, 6 min read
Appliances & lighting
Is a Home Energy Monitor Worth It in Ontario? Monitors, Smart Plugs and Free Data
Is a home energy monitor worth it in Ontario? Compare free smart meter data, plug-in meters, smart plugs and whole-home monitors, with costs and safe uses.
, 5 min read
Appliances & lighting
Is an Induction Cooktop Worth It in Ontario? A Practical Guide
Is an induction cooktop worth it in Ontario? Running costs vs gas and electric, wiring and panel needs, cookware, indoor air and the HRS appliance rebate.
, 6 min read
Appliances & lighting
LED Lighting Guide: How Much Do LED Bulbs Save in Ontario?
How much do LED bulbs save in Ontario? Per-bulb savings, lumens vs watts, colour temperature, dimmers, pot lights and outdoor lighting, explained plainly.
, 5 min read
Appliances & lighting
Standby Power and Phantom Loads: Finding the Hidden Drain on Your Hydro Bill
Phantom loads typically make up 5–10% of household electricity. Learn how to measure them, which devices are worst, and practical ways to cut them in Ontario.
, 5 min read
Electric Vehicles
Home charging, Level 2 chargers and making the most of overnight rates.
EVs
200 Amp Panel Upgrade Cost in Ontario: Do You Need One for a Heat Pump or EV?
200 amp panel upgrade cost in Ontario is typically $2,500–$6,000+. When heat pumps and EVs really need one, and alternatives like EV load management systems.
, 6 min read
EVs
EV Home Charging in Ontario: Costs, Chargers and Installation
Level 1 vs Level 2 EV charging at home in Ontario: installation costs, ESA permits, panel capacity, ULO overnight rates, winter tips and real annual costs.
, 6 min read
EVs
Level 2 Charger Installation Cost in Ontario: Permits, Panels and Choosing a Charger
Level 2 charger installation cost in Ontario is typically $1,500–$3,000. What drives the price, ESA permits, panel capacity, load management and charger choice.
, 6 min read
Seasonal Savings
Practical checklists for Ontario winters and summers.
Seasonal
Winter Energy Savings in Ontario: A Practical Season Checklist
Cut Ontario winter heating and hydro costs: thermostat setbacks, heat pump tips, winter TOU and ULO hours, draft fixes, furnace care and safety checks.
, 5 min read
Seasonal
Fall Energy Checklist for Ontario Homes: Get Ready for Heating Season
A fall energy checklist for Ontario homes: furnace and heat pump tune-ups, CO alarms, draft sealing, the 1 November rate changes and deadlines to watch.
, 6 min read
Seasonal
Heat Wave Energy Tips for Ontario: Stay Cool, Safe and Keep Costs Down
Heat wave energy tips for Ontario homes: pre-cool before peak hours, set AC to 25–26 °C, block the sun, use fans well, and know when heat becomes a health risk.
, 7 min read
Seasonal
Power Outage Preparedness in Ontario: A Home Energy Checklist
Power outage preparedness for Ontario homes: a 72-hour kit, staying warm without power, food safety, sump pumps, and safe generator and battery backup use.
, 7 min read
Seasonal
Spring Energy Checklist for Ontario Homes: Prepare for Summer and Save
A spring energy checklist for Ontario homes: AC and heat pump tune-ups, the 1 May TOU change, sump pumps, humidity, attic checks and low-cost fixes for summer.
, 7 min read
Seasonal
Summer Cooling Savings in Ontario: Stay Comfortable for Less
Lower Ontario summer cooling costs: thermostat settings, summer TOU and ULO hours, AC and heat pump maintenance, shading, dehumidification and heat safety.
, 5 min read
Renters & Condos
Savings you can make without renovating or owning the building.
Renters & condos
Condo Energy Efficiency Upgrades in Ontario: A Guide for Boards and Owners
Condo energy efficiency upgrades in Ontario: where buildings waste energy, which retrofits pay back, how reserve funds and owner approval work, and EV charging.
, 6 min read
Renters & condos
Energy Efficiency Upgrades for Rental Properties in Ontario: A Landlord's Guide
Energy efficiency upgrades for rental properties in Ontario: which pay back for landlords, who benefits when tenants pay utilities, heating rules and rebates.
, 5 min read
Renters & condos
Energy Savings for Ontario Renters and Condo Owners
Practical ways for Ontario renters and condo owners to cut hydro and heating costs: price plans, sub-metering, portable fixes, landlord requests and programs.
, 5 min read
Solar & Battery Storage
Rooftop solar, net metering, batteries and how to judge whether your roof is a good fit.
Solar & storage
Home Backup Power Options in Ontario: Generator vs Battery
Home backup power options in Ontario compared: portable and standby generators, home batteries and power stations, with costs, run times and safety rules.
, 6 min read
Solar & storage
Home Battery Storage in Ontario: Backup, Savings and Trade-offs
Should you add a home battery in Ontario? Backup power, ULO rate shifting, sizing, typical 2026 costs, safety rules and the HRS rebate's net metering trade-off.
, 6 min read
Solar & storage
How to Choose a Solar Installer in Ontario
How to vet and compare Ontario solar installers: licences, ESA permits, quote line items, production estimates, warranties, contract terms and red flags.
, 6 min read
Solar & storage
Is My Roof Good for Solar? An Ontario Checklist
Check whether your Ontario roof suits solar: orientation, pitch, shading, roof age, materials, usable area, structure and snow, with a scoring checklist.
, 6 min read
Solar & storage
Net Metering in Ontario, Explained
How Ontario net metering works under O. Reg. 541/05: kWh credits, the 12-month roll-forward, the reported 12 kW change, the approval process and pitfalls.
, 5 min read
Solar & storage
Off-Grid Cottage Solar in Ontario: Sizing, Costs and Winter Limits
Planning off-grid cottage solar in Ontario? How to size panels and batteries, typical costs, winter and cold-battery limits, generators, permits and safety.
, 6 min read
Solar & storage
Should You Clear Snow Off Solar Panels? An Ontario Winter and Maintenance Guide
Should you clear snow off solar panels in Ontario? Usually not. Winter output, snow losses, safety risks and the yearly maintenance panels actually need.
, 6 min read
Solar & storage
Solar Financing in Ontario: Loans, Leases and What to Watch For
Solar financing in Ontario compared: cash, home equity, installer loans and solar leases, with worked payment examples, true borrowing costs and red flags.
, 5 min read
Solar & storage
Solar Panels in Ontario: The Complete Homeowner's Guide
How rooftop solar works in Ontario in 2026: realistic production, installed costs, net metering, the HRS rebate trade-off, payback ranges and permits.
, 6 min read
Solar & storage
Solar Rebate vs. Net Metering: A Worked Ontario Example
Should you take the HRS solar + battery rebate or keep net metering? A worked Ontario example with clear assumptions, payback, 25-year totals and sensitivities.
, 6 min read
Consumer Protection
Door-to-door sales, contracts, liens and how to spot a bad deal.
Consumer protection
Door-to-Door Energy Scams in Ontario: How to Spot Them and Protect Yourself
Ontario's door-to-door ban on furnace, AC and water heater contracts, common sales tactics, NOSIs, your 10-day cooling-off right and what to do if targeted.
, 5 min read
Consumer protection
Home Energy Myths: 12 Common Beliefs Ontario Homeowners Should Drop
Home energy myths debunked for Ontario homes: thermostat setbacks, closing vents, space heaters, standby power, new windows, heat pumps and door-to-door offers.
, 7 min read
Consumer protection
How to Compare Contractor Quotes for Home Energy Upgrades in Ontario
How to compare contractor quotes for heat pumps, furnaces, insulation and more in Ontario: a side-by-side checklist, red flags, permits, warranties and rebates.
, 6 min read