
Rinnai has spent more than 100 years developing home comfort solutions with a strong focus on water heating and gas appliances. The brand is best known for its tankless water heaters, which heat water on demand instead of storing and reheating a large tank. Rinnai also offers boilers, direct-vent and vent-free heaters, and electric heat pump water heaters for residential applications.
The right Rinnai system should make life easier, not leave you wondering why your hot water or heating is unreliable. Tamas Mechanical helps homeowners across Mississauga and the Greater Toronto Area get the most from their equipment with professional Rinnai water heater installation and repair services. From setting up a new system to troubleshooting performance issues, we can handle them.
Factory-trained technicians for expert installation and service,


Rinnai offers residential boilers in both heat-only and combi configurations. Combi boilers can provide space heating and domestic hot water from one system.



Rinnai tankless water heaters heat water only when you need it. Properly sized systems can provide a continuous supply of hot water without the storage limitations of a traditional tank.
Tankless units have a compact wall-mounted design that takes up much less room than a traditional storage tank. This can free up valuable space in smaller utility rooms, basements and other areas of your home.
Because tankless systems heat water on demand, they avoid the constant reheating associated with traditional storage tanks. Rinnai also offers ENERGY STAR® qualified models for homeowners looking for higher-efficiency options.
Rinnai has more than 100 years of experience. It also individually tests its tankless water heaters for quality.




FAQ's
Rinnai tankless water heaters provide hot water on demand, take up less space, and can use less energy than traditional storage tanks. They can also have a longer service life when properly maintained.
Yes. Tamas Mechanical provides diagnosis, repair, maintenance, and descaling services for compatible Rinnai tankless water heaters.
Annual maintenance is generally recommended, particularly in areas with hard water. Regular flushing and descaling can help control mineral buildup and maintain efficient operation.
Yes. The right model can supply multiple showers, taps, and appliances at the same time. Proper sizing is important to ensure the unit can meet your home’s peak hot water demand.
Yes. Rinnai’s residential lineup also includes heat pump water heaters, boilers, direct-vent heaters, and vent-free heaters.
Contact us
A quality Rinnai system needs proper installation and regular service to perform as expected. Tamas Mechanical provides professional Rinnai installation, repair, and maintenance services throughout Mississauga and the GTA. Contact our team to discuss your Rinnai equipment and find the right service for your home.



