Gas Fireplace Efficiency Vs Furnace

Heating efficiency of vented gas fireplaces.

Gas fireplace efficiency vs furnace.

So a condensing furnace at 95 98 efficiency would get you get 4 7 more heat from the same amount of fuel than an unvented gas fireplace. Today s gas stoves and fireplaces have delivered efficiency ratings hovering around 70 which would rival even a 98 efficient gas furnace with the best imaginable forced air delivery system. Air to feed the flame enters from the outside and relatively cool combustion gases are exhausted through a wall mounted vent or can be vented through a roof. Comparing efficiency of a gas fireplace with a gas furnace is somewhat difficult due to the variables that are associated with the two appliances.

To begin your comparison you can start by taking a look at the btu consumption listed in an owner s manual or on the appliance itself. Furnaces have become more energy efficient over the years. However for a gas fireplace the actual amount of heat can be measured because it delivers heat directly into your home. Gas furnace or gas fireplace.

This difference means that the efficiency listed on a gas fireplace can t always be compared to the efficiency listed on a gas furnace in a meaningful way. For measurements of efficiency this is the best determiner of what delivers the most bang for your buck. Also much of the heat produced by a stove or fireplace is radiant heat. The lowest efficiency allowed by law for new gas.

The included mesh screen and ceramic logs complete the look of this ventless gas fireplace insert. As a result ventless gas fireplace inserts are generally considered the best type of inserts for heating your room. 70 percent of the heat they generate remains in the house. The furnace has a lot going for it here depending on the model.

Gas fireplaces use between 7 000 and 16 000 btus are between 70 and 90 efficient at converting energy to heat and cost around 60 a year to run. The dancing flames and crackling wood of a traditional masonry fireplace adds charm and beauty to the home yet produces surprisingly little heat. Direct vent fireplaces comprise the majority of gas fireplace sales. When it comes to energy efficiency you may find a wide range depending on size and model.

It stands for annual fuel efficiency ratio and measures a direct ratio of fuel consumed to heat distributed. If the unvented gas fireplace manufacturers reported efficiency relative to the higher heating value they would come in at about 91. Electric fireplaces have an output that is based on the electric current.