Block Heater Guides
Everything a Canadian driver should know about engine pre-heating, explained with real numbers and no fluff.
How Does a Block Heater Work?
What a block heater actually heats, how much warmer your engine gets, and why plugging in transforms -30°C starts. Plain-language explanation with real numbers.
When Should You Plug In a Block Heater?
The temperature thresholds that matter: when a block heater is optional, recommended, and non-negotiable — plus how Canadians actually run them with timers.
Block Heater Wattage: How Many Watts Do You Need?
Typical block heater wattages by engine type, why more watts isn't automatically better, and what that draw means for your extension cord and circuit.
How Much Electricity Does a Block Heater Use?
What plugging in actually costs per night and per winter in every province — with the math shown, and the one habit that cuts the bill by two-thirds.
Do You Actually Need a Block Heater?
Modern engines and synthetic oils start in cold that would have killed a carbureted car — so who still needs a block heater? An honest breakdown by climate, parking, and vehicle.
How Long Should a Block Heater Be Plugged In?
Four hours is the magic number. Here's the evidence, what happens if you plug in longer, and how to time it without thinking about it.