The house is electric only and it has a Direct economy 7 immersion Hot water tank (with the cold water feed tank sitting directly on top of the hot tank) Steel Gravity Fed Deer Feeders - Low Bay. This system allows for the front spray attachment to be quickly and easily interchanged, great when using different colours and materials. No wasted hay also means easy Spring clean up in your paddocks or pastures. Contrary to popular belief none of the plastic gets hot, melts, deforms, off gasses, etc. this is diy RDWC elevated Grow with submersible feed pump in rez outside of tent gravity fed.