Designing an Aquaponic Greenhouse for an Urban Food

Source: homewyse.com

Costs of Natural Gas Heater

Solar power(0c/kwh) Low High

Solar panels (^) $4500.00 $12000.00
Power Inverter. (^) $1000.00 $3000.00
Mounting Hardware (^) $800.00 $2000.00
Direct labor expenses to install the system. (^) $2000.00 $4000.00
Wiring (^) $1000.00 $2000.00
Permit and fees (^) $3000.00 $6000.00
(^)
Totals - Cost to Install Electric Water
Heater

$12300.00 $20000.00

Source: Sunrun.com
*Discounts may apply and incentives from government and high ROI (Return of investment)

Costs of PV Solar Heating System

Firewood Heater (outdoor)(0.034c/kwh) Low High

Firewood Water Heater Cost

Non-discounted retail cost for common, mid-grade firewood water heater. $3500.00^ $6000.00^

Labor

Direct labor expenses to install firewood water heater.

$1500.00 $2000.00

Firewood Water Heater Job Materials and Supplies

Cost of supplies that may be required to install firewood water heater including: connectors,

fittings and mounting hardware.

$1000.00 $1500.00

Firewood Water Heater Equipment Allowance

Job related costs of specialty equipment used for job quality and efficiency, including: pipe

cutting and threading, tubing cutter, brazing kit and pipe wrenches.

$500.00 $1500.00

Totals – Cost to Install Electric Water Heater $6500.^00 $11000.00^
Costs of Firewood Heater