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On-Demand Hot Water


You and your family rely on hot water to take showers, do your laundry, carry out kitchen chores and more. But what happens when hot water runs out? You are forced to take an icy shower, the thought of which can give you a chill down the spine. For this reason, West Mechanical Bay Ltd. provides tankless water heaters or hot water on-demand in Victoria. As the name suggests, these innovative water heaters make hot water available, as and when you want, with the press of a switch!


We provide a range of products, including on-demand hot water heaters in Victoria, designed to improve your home's comfort and functionality. We source top-of-the-line water heaters from reliable suppliers in the country. Our team regularly updates our inventory so that you always have an extensive range of water heaters to choose from. If you're unsure of what you need, our team of representatives will be happy to assess your requirements and make personalized recommendations that match your budget.


The Benefits of Tankless Hot Water Heaters


With a seemingly vast range of choices, selecting a hot water heater can be difficult. However, an increasing number of homeowners are now turning to on-demand hot water heaters in Victoria because of the numerous advantages they offer, such as:

  • Continual hot water: The most obvious benefit of an on-demand hot water heater is that it ensures that hot water never runs out in your home, regardless of usage. The unit is not limited by the size of the tank, as in traditional water heaters, and will supply your home with hot water as long as you have electricity or fuel to heat them.
  • Energy efficiency: What makes on-demand hot water heaters energy efficient is that they will only heat water when you need it. In contrast to other water heaters that function and use up power continually, their energy usage is in your hands. You can quickly turn them off when you don't require warm water for your chores or showers.
  • Decreased power bill: You might have deduced that an energy-efficient hot water heater directly translates into lower energy bills. When your water heater isn't running all the time, you save on power. This can significantly cut down on your energy costs in the long run.
  • Optimized use of space: Tankless water heaters take up less space than their counterparts. They are much smaller than other water heaters that hold water for a long time without any decline in their efficiency. This makes them suitable for small and large properties, alike.
  • Long-lasting: In general, tankless hot water heaters are long-lasting and can function for up to 10 years with proper maintenance. If you require repairs and replacements, their parts are easy to acquire.


If you'd like to learn more about how our hot water on-demand can benefit you, please talk to us.

Navien water heater


  • Easy installation and PVC venting
  • 3" SCH 40 solid PVC up to 100'
  • Industry's highest energy efficiency rating
  • Ready Link® Cascade System
  • Optional built-in recirculation system with buffer tank
  • Advanced Eco Navien technology
  • Extended lifecycle utilizing dual stainless steel heat exchangers
  • Advanced remote control - NR-10DU
  • Industry's best warranty!
Rinnai water heater


  • ENERGY STAR® Qualified
  • Energy Factor of .95 for Natural Gas and Propane
  • Built-in Rinnai Circ-LogicTM recirculation program cycles an external pump at pre-set intervals and temperatures to maximize efficiency and comfort
  • Enhanced scale detection lessens possibility of serious, long-term damage to unit
  • Temperature lock function prevents accidental or unauthorized changes to water temperature
Rheem water heater


  • 94% energy efficient with stainless steel condensing heat exchanger
  • Intelligent electronic controls designed to increase energy efficiency and safety
  • Third-party efficiency listed by AHRI
  • Performance Industry First! 0.26 GPM minimum flow rate, 0.40 GPM minimum activation flow rate
  • RTGH-95 for 3 bathroom homes* – 9.5 gal./min. at 35°F rise max., 8.4 gal./min. at 45°F rise SCAQMD rule 1146.2 compliant
  • RTGH-84 for 2-3 bathroom homes* – 8.4 gal./min. at 35°F rise max., 6.6 gal./min. at 45°F rise
  • Self-diagnostic system for easy installation and service. Digital display shows temperature setting and maintenance codes Technology Two-pipe direct vent system designed for PVC pipe

Lochinvar Residential Tankless Water Heaters

Non-Condensing Water Heater

Non-Condensing Water Heater

  • 140,000 to 199,000 Btu/hr input
  • Indoor or outdoor models
  • Low lead compliant
  • Low NOx emissions
Non-Condensing Ultra Low NOx Gas Water Heater

Non-Condensing Ultra Low NOx Gas Water Heater

  • 140,000 to 199,000 Btu/hr input
  • Indoor or outdoor models
  • Field convertible from natural to propane
  • Low lead compliant
  • Ultra-low NOx meets SCAQMD Rule 1146.2
Non-Condensing Concentric Vent Gas Water Heater

Non-Condensing Concentric Vent Gas Water Heater

  • 140,000 to 199,000 Btu/hr input
  • Indoor models only
  • Concentric vent design
  • Field convertible from natural to propane
  • Low lead compliant
  • Ultra-low NOx meets SCAQMD Rule 1146.2
Condensing High Efficiency Gas Water Heater

Condensing High Efficiency Gas Water Heater

  • 120,000 to 199,000 Btu/hr input
  • Indoor or outdoor models
  • Condensing at .93 EF (energy factor)
  • Low lead compliant
  • Ultra-low NOx meets SCAQMD Rule 1146.2
Condensing With Built-In Pump Gas Water Heater

Condensing With Built-In Pump Gas Water Heater

  • 199,000 Btu/Hr input
  • Indoor or outdoor models
  • Integrated recirculation pump
  • Ultra-low NOx meets SCAQMD Rule 1146.2
Rinnai logo
Rheem logo
Navien logo
Lochinvar logo

Why Choose Our Products?

Over the years, we have provided quality water heaters in Victoria to numerous clients. There are many reasons to choose us, such as:

  • A comprehensive list of products
  • Reliable suppliers and brands
  • Quality guaranteed
  • Reasonable rates
  • Warranties
  • Customized recommendations
  • And more!

Speak to our team to know more about our products.



Selecting the right hot water heater for your home is crucial to ensure optimal comfort and efficiency. Here are some factors to consider when choosing a hot water heater:

  • Fuel Type: Determine whether you prefer a gas, electric, or propane-powered water heater based on availability, cost, and energy efficiency.
  • Capacity: Consider the size of your household and the demand for hot water. A larger family will require a water heater with a higher capacity to meet their needs.
  • Energy Efficiency: Look for energy-efficient models with high energy factor (EF) ratings. These water heaters can help reduce your energy consumption and lower utility bills.
  • Space Availability: Assess the available space for installation. Tankless water heaters are compact and can be mounted on the wall, making them ideal for homes with limited space.
  • Brand Reputation: Opt for water heaters from reputable brands known for their quality, reliability, and customer support. Top brands often provide better warranty coverage and long-lasting performance.
  • Maintenance and Service: Consider the ease of maintenance and availability of service technicians for the chosen water heater brand. Regular maintenance is essential to ensure the longevity and efficiency of the unit.
  • Cost: Compare the upfront cost, installation expenses, and long-term operating costs of different water heater options. Evaluate the value for money and choose a water heater that aligns with your budget.



Investing in a tankless water heater from a top brands like Rheem and Navien is vital for several reasons:

  • Quality and Reliability: Top brands have a reputation for manufacturing high-quality products that meet industry standards. Their water heaters are built to last, ensuring reliable performance and fewer chances of breakdowns.
  • Advanced Technology: Leading brands often incorporate advanced features and technologies in their tankless water heaters. These innovations enhance energy efficiency, temperature control, and overall user experience.
  • Warranty Coverage: Renowned brands typically offer comprehensive warranty coverage for their products. This provides peace of mind, knowing that you are protected against any manufacturing defects or issues during the specified warranty period.
  • Customer Support: Top brands prioritize customer satisfaction and have dedicated customer support teams to address any concerns or queries. Their knowledgeable representatives can provide guidance, troubleshooting assistance, and expert advice.
  • Availability of Parts and Service: Choosing a reputable brand ensures easy access to genuine replacement parts and qualified service technicians. This simplifies repairs, maintenance, and any future upgrades or modifications to your tankless water heater.

By purchasing a tankless water heater from a top brand, you can have confidence in the product's performance, durability, and long-term value, making it a worthwhile investment for your home. West Bay Mechanical Ltd in Victoria offers on-demand hot water heaters only from the best in the business, like Lochinvar and Rinnai, to ensure your equipment performs at top efficiency and lasts long.

Remember to thoroughly research and compare different brands, read customer reviews, and consult with professionals to make an informed decision when selecting a hot water heater for your home.

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