Why Your Furnace Can't Keep Up in Extreme Cold Weather

On those days where the mercury drops way below zero, you might find that the house has trouble maintaining the temperature you set due to the extreme cold.

It's so cold the exhaust fumes from the furnace are freezing up : r/mildlyinteresting

Ways to help your furnace handle extremely cold weather

Is this recommended with the cold weather in Edmonton and if so why? : r/Edmonton

6 Reasons Your Furnace Is Running Constantly

Here's why your high-efficiency furnace might not be the best choice in a cold snap

How to (Safely) Heat a Tent

Do heat pumps work in cold places? Here's what you need to know. » Yale Climate Connections

Why Is My Heat Pump Not Keeping Up In Winter? - Townsend Energy

Cold weather could pose risk to your home