Testimonials

"I know that geothermal is what I recommend to all those I know that are looking either to replace an existing system, or are building new homes. Keep up the great work and...
"Dear Denny,   It's snowing and 32 outside, but the house is WARM! This is only the third day and we already love it! All of your employees who worked here were just...
"Along with the low operating cost, we like the comfort levels. Our previous home was gas heating and we always seemed to have cold and hot spots. It seems our new house is...
With a brand new all electric home that's twice the size of my previous home, I figured I'd pay well over $100 a month for electricity. I was wrong. I'm averaging less than...
To the staff and crew at Sisler Heating & Cooling:   I would like to thank Denny and the office staff, Cristy, Mandy & Bill for a great experience in the...
I would not hesitate to recommend the geothermal system. I especially like the fact that on the beach we will not have to replace a condenser - ever.
I moved into a 4,600 square foot house in 2006. This was the biggest place I'd ever lived in. It's pretty nice, catherdral foyer and family room, lots of room for a growing...
We chose a WaterFurnace system because it's a top-of-the-line system. We're very happy with it. The air is always clean and fresh. And the best thing is it's worry free. I can...
At first, the idea of moving into an all-electric home worried me, but it turned out to be extremely cost effective. Our total electric bill averages around $50 a month. My...
I want to thank for the effort your firm put forth in managing this project. I appreciate all the advice and design assistance help you have provided for the installation of...
It's been all it was advertised to be. I've kept meticulous records and the average monthly utility bill has been $175 (for a 5,000 sq. ft home). That includes heating, air...
Denny:   I just wanted to take a minute and praise your employees Andy, Dion, Jerry, & Matthew. It was pleasurable having them at my home. They worked very hard and...
We did the absolute right thing by going with WaterFurnace. It costs much less than heating and cooling with gas or oil. And it's the most environmentally friendly system there...
Dear Mr. Sisler:   The geothermal system installation for my home was finished last week, and is now operative and supplying air conditioning for all four levels of the...
Dear Denny Sisler,   I love my "Geo"!!!! We've been in "geo-conditioned" comfort for over a month now and it's wonderful. Making the decision to have three Waterfurnace...
Dear Dennis Sisler and Company:   Paul and I wish to express our heartfelt appreciation for the excellent work done in the replacement of our heating and cooling...
It's been everything that we were told. We are heating and cooling a house that's twice the size of our other house. At our old house, the combined electric and natural gas...
We were attracted to geothermal because of its cost savings and environmental benefits. You recoup your investment over a period of time and I like the fact that the units are...
Our family is exceptionally satisfied with our geothermal unit. No matter what room we're in, our house has the same consistent temperature. The clean air is another health...
Denny   We would like to take this opportunity to commend your talented crew of installers. They did an exceptional job of installing our system despite the difficult...
We are a blended family but we are in our 4th geo-thermal home at present. Both families had geothermal as indivduals and when we remarried we added geo to the first house we...
I incorporated geothermal in this house because it was part of what I've learned over the last 22 years. I know that geothermal provides the best comfort and it definitely...
Because of our lower heating & cooling bills, we expect to break even on the system in five years. It's clean and quiet, and we have even heat throughout the house. Bottom...
In the winter of 1994 during a 31-day billing period when the temperature never got above freezing, I was able to heat my house of over 2,400 square feet for less than a friend...
Since installing the system 15 years ago, we have cut our heating and cooling costs in half and are saving up to 30% on our hot water. I like being able to turn up the...