What is the cost difference of using a gas fireplace vs. gas heat?

Dave G questioned:


We have natural gas for heat, as well as the fireplace. I want to use the fireplace more, but I suspect that using a fireplace much in a month would run up our bill moreso than sticking with the normal house’s gas heat.

Anyone know if that’s right? Is there a rough amount that it would cost extra? 20-30% higher maybe?

Gladys

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2 Responses to “What is the cost difference of using a gas fireplace vs. gas heat?”

  1. Randy says:

    Ruby

    It depends on how efficient your furnace is and whether or not your fireplace unit is vent free. A vent free unit has the damper nearly closed so a lot of the heat stays in the room. Either way the furnace is built such that the majority of the heat reaches the rooms. Stick with the furnace and use the fireplace when you want to cuddle….ahem…

  2. Monica says:

    Jacob

    It depends on really if you have the proper system installed in the fireplace.If you have one that uses room air for combustion (most of the heat goes right up the chimney) or you have the new fangled sealed gas heater that uses its own air supply ducted from the outside and heats in a different way from standard gas logs. Probably about a millions time better and cheaper to operate, yet still gives off ambiance in the room and requires no electrical connections, so it works in power outages. They featured an install on this system not too long ago on Question this ancient house.