If your furnace goes out these repair articles will get it back heating.
How to Replace a Rain Cap
Older rain caps for metal chimneys and flue liners can deteriorate or fall apart, but installing a replacement cap is as easy as climbing onto the roof.
Other Projects for DIYers from The Family Handyman:
3 Easy Furnace Repairs
Keep your high-efficiency gas furnace running with these 3 easy furnace repairs (Bonus: 2 repairs that you should never attempt on your own).
How to Bleed a Hot Water Radiator and Clear a Steam Radiator Vent
If one radiator doesn't heat up but others do, try this one-minute fix first. It usually solves the problem.
Furnace Humidifier not Working? Replace it
If the humidifier on your furnace is not working, you can easily fix or replace it yourself. Simply follow our step-by-step photos and instructions.
Choosing Furnace Filters
More expensive (electrostatic) furnace filters capture smaller particles and need less changing than cheaper (pleated) and the cheapest (woven fiberglass) filters. If you have allergies, consider electrostatic filters.
How to Adjust a Mechanical Thermostat
HVAC units that cycle on and off quickly or erratically may just need minor thermostat adjustments. Check level first, then take a look at the heat anticipator.
The Best Furnace Filters to Buy
A high-efficiency furnace filter can slow airflow too much, but low-efficiency filters don't filter dust very well. Get a better understanding of the issues and learn how to find the right filter for your furnace.
How to Change a Furnace Filter
Check your furnace filter monthly and change it when it's dirty. You'll get better heating in the winter and air conditioning in summer. You'll save on your utility bills and extend the life of your furnace too.
Simple Furnace Fixes
If your furnace quits or breaks down try these eight simple solutions before you call for service help. You can solve the problem and avoid a $200 service call.