The domestic gas water heater may be either a tank-type or a tankless type.
Typical domestic tank-type water heaters range from 30 to 50 gallons and they require floor space to be installed. Tankless units are rated in gallons per minute (GPM) and range from 2 to 10 GPM. They can be wall mounted and located in reduced spaces.
You will find that gas water heaters are more expensive to buy than electric types even before considering the cost of gas ventilation and gas pipe requirements, but in most regions gas is the less costly heat source. Tankless heaters may cost more, but are considered lower cost to operate with their higher efficiency.
The cost to install average gas water heating depends upon type, heating flow and tank capacity, preparation and special needs, and the labor rate.
In the following table the Labor Cost figure is what the able and prepared DIY persons should expect to save by performing the corresponding tasks.
Gas water heater replacement: for 4 or 5 person home; includes old material removal and disposal, transport, new material and installation, equipment, and waste.
|Item||Unit Cost||Quantity||Line Cost|
|Water heater: 40 gallon tank, connect to existing vent and pipe with minor modifications.||$385||each||1||$385|
|Upgrade tank capacity: 50 gallon, 5 person home.||$99||each||1||$99|
|Upgrade tankless: additional cost to install tankless 6.4 gallons per minute; installed to existing vent and pipe with minor modifications.||$209||each||1||$209|
|Removal: transport and non-hazardous dump fees.||$45||per CY||1.5||$68|
|Fees and Material Cost||$761||each||1||$761|
|+ Labor Cost (remove and dispose)||$32||per hour||2||$64|
|+ Labor Cost (install)||$42||per hour||4||$168|
|+ Labor Cost (upgrade capacity)||$42||per hour||1||$42|
|+ Labor Cost (upgrade tankless)||$42||per hour||1||$42|
Prices range from $453 (gas w/ 40 gallon tank, 3 or 4 persons - DIY) to $1,077(gas tankless for two bathrooms) and also vary depending on your zipcode:
Local costs have been calculated by accounting for labor and material cost differences across different cities. To get accurate cost estimates, indicate yours: