Domestic Hot Water

• Trade Talk: Gas-Fired Air Conditioning (Subscriber content)

  Gas-fired air conditioning

   

• Designing & Testing Forced-Air Systems (Subscriber content)

  Here are steps you can take to ensure proper sizing and installation of air-conditioning and forced-air heating. Included is a list of detailed specifications that will guarantee state-of-the-art performance.

   

• Trade Talk: When a Flue Is Too Big (Subscriber content)

  When is a flue too big to vent an appliance safely?

   

• Q&A: Using an Electric Water Heater for Radiant Heat

  Q: In his November 1998 article, "Using Water Heaters for Radiant Heat," Bill Clinton shows how to heat a home with a gas water heater. Will an electric water heater work in this type of system? How about a tankless electric water heater?

   

• Q&A: Water in Under-Slab Ducts

  Q: Nine years ago I built a new house on a slab foundation. We put in a forced-air heating system, and the hvac contractor ran the ducts under the slab. The house is on a lake, and during certain times of year rising ground water enters the ducts. We

   
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  Fine-Tuning Forced-Hot Air

  A heating contractor details how to upgrade from a typical bare-bones heating system to one that delivers comfort and customer satisfaction.

   

• Products

  Stepladder tool pouch; vinyl board & batten siding; fold-away urinal; new-tech utility knives; polyethylene garage doors; and more

   

• Q&A: Water Heater Relief Valve Keeps Tripping

  Q: After reading the article "Using Water Heaters for Radiant Heat" (11/98), I decided to replace my boiler with a 75-gallon propane water heater. In general, this is working great, except that about every three weeks the pressure-temperature relief valve, which is rated at 210°F, keeps tripping. I...

   

• Installing Direct-Vent Space Heaters (Subscriber content)

  Proper installation of these fan-assisted units can provide comfortable, energy-efficient heat in room additions and small dwellings.

   
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  Makeup Air For Combustion Equipment

  Fuel-burning appliances like water heaters, furnaces, and boilers need a steady supply of combustion air to operate safely and efficiently. In today’s tight houses, this means you may have to install dedicated air intakes. In this article, a venting specialist tells you what you need to know.