Tankless water heater installation & replacement

Rinnai® Tankless Water Heater Installation in London, Ontario

Platinum Air Care installs Rinnai® tankless water heaters for homeowners who want consistent hot water, improved energy efficiency, and a long-term upgrade from traditional tanks. We handle proper sizing, venting, gas supply requirements, and code-compliant installation across Southwestern Ontario.

4.9 from 2,300+ Google reviews

Call to request a free Rinnai tankless estimate.

  • Proper sizing for your home
  • Code-compliant installation
  • Old tank removed
  • Serving homes since 1999
Rinnai SENSEI RX tankless water heater mounted on a concrete block basement wall, with its gas and water lines
A wall-mounted Rinnai SENSEI® RX tankless water heater.

Going tankless

Platinum Air Care Makes It Easy to Go Tankless

Dealing with a leaking hot water tank, or one that keeps running out of hot water? When tankless fits your home, we recommend a Rinnai. You get consistent hot water and better efficiency, because you’re not heating a full tank when you don’t need it.

We take care of:

  • Proper sizing for your home’s demand
  • Venting and gas supply evaluation included
  • Removal of the old tank and clean installation

What our customers say on Google

Rinnai Sensei RX wall-mounted tankless water heater with its digital temperature display
A wall-mounted Rinnai tankless water heater. ENERGY STAR® models are available.

Endless hot water. High efficiency. Premium tankless performance.

Why Rinnai® Tankless Water Heaters?

Rinnai is known for premium tankless systems designed for efficiency, durability, and steady hot water output. We recommend Rinnai for homeowners looking to upgrade from a tank, reduce wasted energy, and gain long-term performance with professional installation.

  • Endless hot water on demand
  • High efficiency options including ENERGY STAR® models
  • Space-saving wall-mounted design
  • Long service life with proper maintenance
  • Built for consistent performance in real-world use

Hot water on demand, without running out

How a Rinnai Tankless Water Heater Works

Endless hot water for busy mornings, long showers, and real life.

Tankless systems heat water only when you need it, reducing standby energy loss and helping you avoid the frustration of a tank running cold during peak demand.

  1. You open a hot water tap
  2. The unit senses flow and fires the burner
  3. Water is heated as it passes through the heat exchanger
  4. You get continuous hot water as long as there’s demand

The right model and proper sizing matter. A professional assessment ensures you get the performance you expect.

Inside a Rinnai SENSEI® RX: how it works (video: Rinnai America Corporation).

Tank or tankless

Is Tankless Right for Your Home?

Tankless is a great fit for many homes, but correct sizing and installation matter. A home’s bathrooms, simultaneous demand, and gas supply determine which unit is right.

Great fit if you want:

  • More consistent hot water
  • Improved efficiency
  • More space (wall-mounted)
  • A long-term upgrade from a tank

Considerations:

  • Some installs require venting changes
  • Some homes require gas line upgrades
  • Annual maintenance keeps performance strong

Not sure which unit fits your home? Call to request a free estimate.

Call (519) 686-3595

Questions

Rinnai® Tankless Water Heater Frequently Asked Questions

Is a tankless water heater worth it?

For many homeowners, yes. Tankless water heaters provide consistent hot water on demand, improved efficiency, and a long service life. The right model, proper sizing, and a professional installation are key to getting the performance you expect.

How long do Rinnai tankless water heaters last?

With proper installation and routine maintenance, a Rinnai tankless system is built for long-term performance, often delivering 15 years or more of reliable operation. Annual servicing helps maintain efficiency and protect internal components.

Will I need a gas line upgrade for tankless?

Sometimes. Tankless systems can require higher gas input than a standard tank. We evaluate your existing gas supply and venting before installation so there are no surprises.

How long does tankless water heater installation take?

Many installations can be completed in a day, depending on venting and gas supply requirements. We provide a clear plan before work begins.

Do you remove the old hot water tank when installing tankless?

Yes. Removal and disposal of the old unit is included with replacement installations.

Who installs Rinnai tankless water heaters near London, Ontario?

Platinum Air Care installs Rinnai tankless water heaters in London and across Southwestern Ontario, including St. Thomas, Tillsonburg, Brantford, Guelph, Cambridge, Kitchener, Waterloo, Sarnia, Chatham, and Windsor. Call (519) 686-3595 to request a free estimate.

Free estimate

Get a Free Rinnai® Tankless Estimate

We’ll recommend the right unit size and installation approach for your home’s hot water demand. Call us at (519) 686-3595.

  • Rinnai tankless
  • Serving homes since 1999
  • 4.9 from 2,300+ Google reviews

Prefer a callback? Request one with the form.

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