Replace Existing System Has your gas furnace seen better days? Thinking about replacing you current inefficient system before it needs costly repairs? A smart choice when considering replacing an old or inefficient furnace in Martinsburg, WV is to choose a WaterFurnace geothermal products. With no combustion, there isn't any need to exhaust waste gas. Our easy to install units only need an electrical connection you already have. So, our equipment can be installed just about anywhere. Most homes can instantly enjoy the full benefit one of our geothermal systems can provide. You required to have ductwork previously installed. If this is not the case, we can easily take care of this problem by having the required ductwork installed by our professional staff. Other options to consider are... Radiant in-floor heating - Gone are the mornings of walking on cold tile Water heating - Adding this great add-on will heat your water year-round Just think of it - comfortable heating, warm floors, and hot water; all while reducing your heating and cooling cost while preserving the environment. Check out the savings calculator to see how much you can save by switching to a geothermal system!