On-demand hot water, space-saving design, and lower utility costs. the modern upgrade for any home. 0% financing available.
Proper gas line or electrical connection sized for your tankless unit's requirements.
Code-compliant venting installation for safe exhaust and intake airflow.
Professional hot and cold water line connections with isolation valves for easy maintenance.
Calibrated to deliver optimal hot water flow for your household's demand.
Fast response times, with same-day installation available across Mississauga, Oakville, Etobicoke and Burlington.
Fully licensed HVAC technicians with comprehensive insurance for your peace of mind.
Affordable monthly payments with 0% financing on qualifying tankless water heater installations.
We add up the fixtures you might run at once and size the unit in litres per minute, accounting for winter inlet water temperature.
Tankless units fire at a much higher BTU rate than a tank, so the gas line and venting usually need upgrading.
Old tank removed, new unit wall-mounted, which frees the floor space the tank occupied.
Gas line sized and run, stainless venting installed, condensate drain fitted on condensing models.
We verify gas pressure under load, check temperature rise at the tap, and set the target temperature.
This is the most common cost driver. A tankless unit often needs a larger line run back to the meter.
Tankless units require stainless or PVC venting rather than the old tank's flue, usually routed to a new exterior penetration.
Higher flow rates cost more. A home with two bathrooms in simultaneous use needs a larger unit.
Condensing units are more efficient and need a condensate drain.
Hard water areas benefit from a scale filter or isolation valves for descaling, which adds a little to the install.
Our pricing list publishes $3,750 + HST installed for a Rinnai RX 160 and $4,250 + HST for a Rinnai RX 199, equipment and installation included. What can add to that is gas line or venting work, because a tankless unit fires at a much higher input than the tank it replaces.
It gives you endless hot water, frees the floor space a tank occupies, and typically lasts longer than a tank. The trade-off is a higher upfront cost and the gas and venting work that comes with it.
A tank heats water slowly and steadily at a modest BTU rate. A tankless unit heats on demand and fires at a much higher rate, so the existing line often cannot supply enough gas.
Typically fifteen to twenty years with annual descaling, compared with eight to twelve for a tank.
Yes. Annual descaling keeps mineral buildup from restricting the heat exchanger, which matters more in hard water areas. Tankless descaling is $225 + HST.
Not by volume, but flow rate is finite. If the unit is undersized for the number of fixtures running at once, temperature drops. Correct sizing at the quote stage prevents this.
Call us today for a free quote on tankless water heater installation in Mississauga.
Prefer to talk it through? Call (647) 280-6626 — answered 24/7. Licensed and insured, with the price agreed before any work starts.
Pick a time that works for you. It only takes 60 seconds.
Two things worth checking before you commit. Gas work in Ontario is regulated by the province’s safety authority, and a qualifying replacement may be eligible for federal or Enbridge rebates.
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Read all 175 Google reviews“I had a great experience with Real Deal HVAC. He came on very short notice and had a positive, professional attitude throughout. He thoroughly checked everything, reassured us that there was no gas leak, and clearly explained the situation…”
“Shemar was on time and easy to work with for scheduling and spent time reviewing our HVAC system in general while being here just for AC check up. He found a potential concern to warn us about. Offered good advice about other HVAC issues. Very pleasant and courteous.”
“Shemar is great to deal with. Did an inspection visit on a very short notice, took the time in explaining everything to us so we understand what needs to be done every season, provided us with a great plan. He was very friendly,…”
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