If you own a gas-burning forced-air furnace or are thinking of buying one, understanding how they work is an important first ...

have a natural gas furnace. It’s the most popular heating option, and has been for years. Fun fact: The concept for the first ...

Up to 1709, furnaces could only use charcoal to produce iron. However, wood (which is what charcoal is made from) was becoming more expensive, as forests were being cleared for farmland and timber ...

Most homes use a forced-air furnace system to provide heat during the colder months. These furnaces burn fuel, such as gas or oil, to heat the air and then distribute the warm air through ductwork.

The three main types of furnaces are electric, natural gas and oil. Like with air conditioning systems, a furnace’s size is measured in British thermal units, or BTUs. The number of BTUs ...

But homeowners must make the right choice between gas and electric models to reap the benefits. The guide below describes the basic features ... connections for frayed wiring, or signs of damage ...

When you place a block of wood in a pail of water, the block displaces some of the water, and the water level goes up. If you could weigh the water that the wood displaces, you would find that its ...

Home repairs can range from changing the batteries in your thermostat to replacing your gas furnace. That means expenses vary, too. A home warranty can prepare you for repair and replacement costs ...

The Priority Systems include two gas furnaces and one oil furnace with AFUE ratings up to 96% and 85%, respectively. Choice Systems offers both fuel types as well as more model options ...

Compact and reliable, the ABL80 FLEX analyzer – BASIC version is a cost-effective choice for blood gas, electrolyte and lactate analysis. Its standby mode reduces the costs for consumables while ...

This book presents the concepts, methods and applications of kinetic theory to rarefied gas dynamics. After introducing the basic tools, problems in plane geometry are treated using approximation ...