less popular due to being less cost effective. Solar hot water systems are attractive because of the 0 fuel
and low energy requirements, but require a backup heating system in case of low sun.
The heating system of the green house and the Aquaponics system should be studied carefully because
of the costs. In a climate zone like New England the amount of heat needed for homeostasis is very high
especially during the winter. Startup cost is an estimated cost of installing the equipment for a heating
system to work properly. Electrical heater works by converting the electrical energy to heat. The gas
heaters work by burning the gas and using this energy to heat the water in the tank. The firewood water
heaters work by burning the wood and using this energy to heat the water.
Figure 20. Various Heating Options
For heating needs using solar we have two main systems. The PV solar system and Solar water heaters.
The PV solar system will convert the solar energy to electricity than we can use the above electrical
Electric Heater Gas Heater
Firewood HeaterSolar Water Heater
PV Solar System