FAQ
Water Heating FAQ
Common questions about tank water heaters, tankless systems, boilers, replacement and service in the Greater Toronto Area.
Should I choose tank or tankless?
The right choice depends on hot-water demand, equipment location, gas or electrical capacity, venting, budget and project requirements. Airrand can review the application and explain practical options.
Does tankless mean unlimited hot water?
A properly sized tankless system can provide continuous hot water within its designed flow capacity. Flow rate, incoming water temperature, gas capacity and simultaneous fixtures still matter.
Can Airrand replace my existing water heater?
Yes, subject to evaluating the existing equipment, venting, water connections, fuel source, drainage and the application. Direct replacements are usually simpler than changes in equipment type or location.
What size water heater do I need?
Sizing depends on household demand, fixture use, recovery needs, equipment type and the installation conditions. It should not be selected from square footage alone.
What is a combi boiler?
A combi boiler is one appliance designed to provide hydronic space heating and domestic hot-water production. It must be sized for both the building heating load and the hot-water demand.
Is a boiler the same as a water heater?
No. A water heater is primarily for domestic hot water such as showers, sinks, dishwashers and laundry. A boiler is primarily for hydronic space heating, although some systems are designed to combine both functions.
Why is my tankless water heater showing an error code?
Error codes vary by manufacturer and model. They can relate to ignition, venting, water flow, sensors, condensate, gas supply or maintenance needs, so the specific equipment should be diagnosed properly.
Why is water leaking from my water heater?
Water can come from piping, drainage, relief components, fittings or the tank itself. If a storage tank is leaking from the tank body, replacement may be required.
Can a water heater be moved?
Relocation may require changes to water piping, gas, venting, drainage, electrical and service access. The location needs to be evaluated before the scope can be confirmed.
How often should water-heating equipment be maintained?
Maintenance intervals depend on equipment type, manufacturer requirements, usage and water conditions. Tankless systems and boilers often have more specific maintenance needs than a basic tank replacement.
