Heat Pumps 

1. DC Air to Air Multi Head Heat Pump

Available Sizes: 24000/36000 /48000 BTU/hr: 

1. The Heat pump is sized to provide 2 or 4 inside units: The outside heat pump provides solar heat or A/C to the inside on demand. 
2. The battery system is sufficient to store to run the heat pump through all or much of the night, 1,000AH of storage is typical but depends on heat loss and solar arrays. Example the 36,000BTU unit requires 5kw of solar and over 1,00AH of batteries. It is possible to connect the heat pump to the grid to operate it when there is no sun or batteries are depleted.

2. DC Air to Air Single Head Heat Pump

Available Sizes: 24000/36000 /48000 BTU/hr:

The simplest system with battery storage:

1. The outside heat pump provides solar heat or A/C to the inside on demand.
2. The battery system is sufficient to store 48V DC to run the heat pump through all or much of the night, 1,000AH of storage is typical.
3. The Heat Pump (HP) is variable speed which optimizes the heat load and reduces noise. It is possible to connect the heat pump to the grid to operate it when there is no sun, or batteries are depleted.