Inside a Natural Gas Furnace

BTU stands for British thermal unit. BTUs are a measure of the heating — or cooling — power of an appliance. Here's the 411 on BTUs.

assorted hand tools in question mark shape

here are dozens of different kinds of screwdrivers — and more cropping up all the time as manufacturers develop new types of screws. Luckily, there are really only a few varieties the average homeowner should keep on hand. Here’s a primer on screwdrivers.

man throwing a wet wipe to the toilet

We all put things down our toilet that aren’t exactly supposed to be there — whether out of convenience or ignorance. But you should know that your habit of flushing cat litter or Q-tips might be harmful to both your house’s septic system and your city’s sewer system. Here are 11 things not to flush.

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