Best Gas Tankless Water Heater for Apartments, Condos, and Small Homes
When it comes to hot water, small-space living doesn’t mean you have to compromise on comfort. Whether you live in an apartment, condo, or a compact home, a gas tankless water heater can be the perfect solution to provide endless hot water while saving space and energy. In this article, we’ll walk you through what makes gas tankless water heaters ideal for smaller homes and why the ThermoMate CZ422 Gas Tankless Water Heater stands out as one of the best options in 2025.
Why Choose a Gas Tankless Water Heater for Small Spaces?
Traditional tank water heaters take up valuable space and store large amounts of hot water—often more than what smaller households actually need. A gas tankless water heater, on the other hand, heats water only when you need it, using natural gas for efficient and powerful heating.
Here’s why gas tankless models are perfect for apartments, condos, and small houses:
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Compact Size – Wall-mounted and tank-free design frees up valuable floor space, making installation easy even in tight utility closets or under cabinets.
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Endless Hot Water – On-demand heating ensures continuous hot water for showers, dishwashing, and laundry.
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Energy Efficiency – Since water is only heated when in use, there’s no standby heat loss, helping you save on energy bills.
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Long Lifespan – Tankless systems typically last longer than conventional tank heaters, offering great long-term value.
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Environmentally Friendly – Reduced energy consumption means lower carbon emissions, a plus for eco-conscious homeowners.
Meet the ThermoMate CZ422: Compact Powerhouse for Small Homes
If you’re looking for a balance of power, performance, and compact design, the ThermoMate CZ422 Residential Natural Gas Tankless Water Heater is a standout choice.
Key Features:
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Flow Rate: Up to 4.4 GPM, suitable for supplying hot water to one shower and one additional faucet simultaneously.
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Compact Design: Ideal for apartments, condos, and small homes with limited space.
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Efficient Heating: Delivers on-demand hot water with high thermal efficiency and low energy waste.
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Safety Protection: Equipped with flame failure protection, overheat protection, and anti-freezing features for safe year-round use.
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User-Friendly Operation: LED digital temperature display and easy gas/water control knobs make temperature adjustment effortless.
The CZ422 is designed for small households that want instant, reliable hot water without the bulk or inefficiency of a traditional water heater.
Is a 4.4 GPM Tankless Water Heater Enough for You?
For smaller living spaces, a 4.4 GPM (gallons per minute) system is often the sweet spot. It can comfortably handle:
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1 Shower (2.0 GPM)
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1 Sink (1.0–1.5 GPM)
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1 Dishwasher or Washing Machine (1.0–1.5 GPM)
That means you can enjoy a hot shower while running a faucet or small appliance at the same time — no cold surprises.
If your household needs are modest (1–2 people or one bathroom), the CZ422 is the perfect fit. For larger homes or multi-bathroom setups, ThermoMate also offers higher-capacity models to meet heavier demand.
Installation and Maintenance Tips
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Professional Installation: Always have a licensed technician install your gas tankless water heater to ensure proper ventilation and safety compliance.
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Regular Maintenance: Flush the heat exchanger annually to prevent mineral buildup, especially in hard-water areas.
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Proper Venting: Ensure correct exhaust venting to maintain efficiency and indoor air quality.
These steps will help your ThermoMate heater perform at its best for years to come.
Why ThermoMate?
ThermoMate has been committed to delivering reliable, energy-efficient water heating solutions for modern homes. With a focus on innovation, safety, and performance, ThermoMate’s tankless water heaters are designed to meet the unique needs of every household — from compact apartments to large family homes.
Conclusion
If you’re living in a smaller space but still want the comfort of endless hot water, a gas tankless water heater is the smart choice. The ThermoMate CZ422 combines compact design, reliable performance, and energy efficiency, making it one of the best gas tankless water heaters for apartments, condos, and small homes in 2025.
Upgrade today and enjoy instant hot water without compromise — because even small homes deserve big comfort.