Supplements: Success in space consideration and zero heat gain were made and only the best of the best were used in this home for instance the indoor air handler has a multi speed motor, which makes it way more efficient, the air handler also has electronic, electrostatic air filtration system. Tankless hot water system, (Limitless hot water) We utilize a "Sun ... (Read more) Success in space consideration and zero heat gain were made and only the best of the best were used in this home for instance the indoor air handler has a multi speed motor, which makes it way more efficient, the air handler also has electronic, electrostatic air filtration system. Tankless hot water system, (Limitless hot water) We utilize a "Sunny boy" EDM massive stand alone solar system which provides a reduction of electricity to a monthly bill between $20 and $60 per month. Windows are Argon gas filled dual pane for great R value. The rooms are virtually sound proof as we like turning our Polk audio sound system loud without the neighbors hearing a thing. Appliances stay and are all top of the line all Samsung, we have a four drawer refrigerator and a 2 in 0ne washer which work very well. Both gas as well as 240 volt hook ups are available in the kitchen and laundry. We have a private well which was drilled surveyed but never used. The list goes on and on you've got to come out and see for yourself.