Heat pumps are a fantastic way of reducing your spa's running costs. In fact, savings of up to 73% are not uncommon. However, there's a catch. Most heat pumps available for spas now days are not actually designed to work with spas. It is vital, that in choosing a heat pump for you spa, you check that it interfaces with the spa's control system. Currently, the only spa control system available that interfaces with heat pumps, are SpaNet's SV series controllers. The SV system allows you to fully control the heat pump's operation via the spa's touch pad. It not only heats the spa, but also cool it - great in hot climates. Lastly, the Spa Net heat pumps will go through a proper shut down process before use. This is crucial for trouble free heat pump operation.