HVACR technicians inspect and maintain heating and cooling systems. Heating, air conditioning, and refrigeration mechanics and installers held about 267,600 jobs in 2012, of which 61 percent were employed in the plumbing, heating, and air-conditioning contractors industry.About 9 percent were self-employed.nstallation, maintenance, and repair occupations. 10%. Employment of heating, air conditioning, and refrigeration mechanics and installers is projected to grow 21 percent from 2012 to 2022, faster than the average for all occupations.
With all needed parts and labor, hiring a plumber to install a traditional gas water heater costs $300-$3,500 or more, depending on capacity (with 40 or 50 gallons the most common sizes); length of warranty (typically 5-12 years); and the amount of repairs required to meet current building codes.
Hot Water Heater. Expected life: 10 years for gas or electric; 20 years for tankless. Total cost : $548 to $915 for energy-efficient model; $739 to $1,240 for tankless; $2,658 to $3,443 for heat-pump water heater.It's time if: The unit is ten years old or more, leaks around the base, or works erratically.ot Water Heater. Expected life: 10 years for gas or electric; 20 years for tankless. Total cost : $548 to $915 for energy-efficient model; $739 to $1,240 for tankless; $2,658 to $3,443 for heat-pump water heater.