Running out of hot water mid-shower is the worst. Upgrading to an indirect hot water heater can solve that, giving you a consistent and efficient supply. These heaters use your existing boiler to heat water, so they’re super efficient and last a long time. Picking the right one depends on your household size and hot water needs. Let’s dive into some top options to help you find the perfect fit.
Product Overview / Quick Summary:
- Rheem Marathon MR85245: Best Overall – Durable, lightweight, and corrosion-proof.
- HTP SuperStor Pro Indirect Water Heater: Best for Large Families – High recovery rate and efficient heat transfer.
- Triangle Tube Phase 35 Indirect Water Heater: Best for Efficiency – Excellent insulation and low standby heat loss.
- Bradford White eF Series Indirect Water Heater: Best Value – Reliable performance at a reasonable price.
- Lochinvar Squire Indirect Water Heater: Best Compact Design – Space-saving design with great performance.
Top 5 Best Indirect Hot Water Heaters
1. Rheem Marathon MR85245
The Rheem Marathon MR85245 is known for its durability. The non-metallic tank eliminates corrosion, making it a long-lasting choice. It’s also lightweight, making installation easier.
Pros:
- ✅ No corrosion issues thanks to its non-metallic tank.
- ✅ Lightweight design simplifies installation.
- ✅ High resistance to heat loss.
Cons:
- ❌ Can be more expensive than some other models.
- ❌ Limited warranty compared to some competitors.
- ❌ May require professional installation due to plumbing connections.
Verdict: Ideal for homeowners looking for a durable, long-lasting water heater that can withstand harsh water conditions.
2. HTP SuperStor Pro Indirect Water Heater
The HTP SuperStor Pro is designed for larger families with high hot water demands. It offers a high recovery rate, meaning it heats water quickly. Its stainless steel construction ensures durability.
Pros:
- ✅ Excellent for large families with high hot water needs.
- ✅ Durable stainless steel construction.
- ✅ High recovery rate for quick heating.
Cons:
- ❌ Higher upfront cost compared to other models.
- ❌ Can be bulky, requiring more installation space.
- ❌ Requires regular maintenance to prevent scale buildup.
Verdict: A great choice for large households needing a reliable and fast-acting water heater.
3. Triangle Tube Phase 35 Indirect Water Heater
The Triangle Tube Phase 35 stands out for its energy efficiency. Its exceptional insulation minimizes standby heat loss, saving you money on energy bills. It’s a great choice if you prioritize efficiency.
Pros:
- ✅ Exceptional insulation reduces standby heat loss.
- ✅ Energy-efficient design lowers utility bills.
- ✅ High-quality materials ensure long-term reliability.
Cons:
- ❌ Higher price point compared to standard models.
- ❌ Complex design may require specialized installation.
- ❌ Limited availability in some regions.
Verdict: Best for homeowners who want to maximize energy savings and are willing to invest in a premium product.
4. Bradford White eF Series Indirect Water Heater
The Bradford White eF Series offers a balance of performance and affordability. Known for its reliability, it provides consistent hot water without breaking the bank. It’s a solid choice for budget-conscious buyers.
Pros:
- ✅ Reliable performance at a reasonable price.
- ✅ Durable construction ensures longevity.
- ✅ Readily available and easy to find.
Cons:
- ❌ Not as energy-efficient as some premium models.
- ❌ Shorter warranty compared to high-end options.
- ❌ May require more maintenance than non-metallic tanks.
Verdict: A good option for those seeking a reliable water heater without a hefty price tag.
5. Lochinvar Squire Indirect Water Heater
The Lochinvar Squire is perfect for homes with limited space. Its compact design doesn’t sacrifice performance, delivering ample hot water. It’s ideal for apartments or small houses.
Pros:
- ✅ Space-saving compact design.
- ✅ Efficient heat transfer.
- ✅ Durable construction for long life.
Cons:
- ❌ May not be sufficient for very large households.
- ❌ Higher initial cost compared to standard models.
- ❌ Limited capacity might require more frequent heating cycles.
Verdict: Best for smaller homes or apartments where space is a premium, but you still need reliable hot water.
Buying Guide
Choosing the right indirect hot water heater involves considering a few key factors. Here’s what to keep in mind:
- Size and Capacity: Match the tank size to your household’s hot water needs. A larger family needs a bigger tank.
- Recovery Rate: Consider how quickly the heater can replenish hot water. Higher recovery rates are better for large families or frequent use.
- Energy Efficiency: Look for models with good insulation to minimize heat loss and lower energy bills.
- Durability and Materials: Stainless steel or non-metallic tanks resist corrosion and last longer.
- Warranty: Check the warranty terms for coverage and duration. A longer warranty indicates the manufacturer’s confidence in the product.
- Installation: Decide if you can install it yourself or need professional help. Factor in installation costs.
- Budget: Balance upfront cost with long-term energy savings and maintenance expenses.
I remember when I replaced my old water heater. I didn’t think about the size and ended up with one that was way too small. Cue cold showers! Learn from my mistake – measure your needs carefully.
FAQs
Q: What is an indirect hot water heater?
A: It uses heat from your boiler to heat water in a separate tank, providing a consistent supply of hot water.
Q: How long do indirect hot water heaters last?
A: They typically last 10-20 years, longer than standard tank water heaters, thanks to reduced wear and tear.
Q: Are indirect hot water heaters energy-efficient?
A: Yes, they are generally very energy-efficient because they use the existing boiler system.
Q: Can I install an indirect hot water heater myself?
A: It’s best to have it professionally installed, especially if you’re not experienced with plumbing and boiler systems.
Q: How do I maintain an indirect hot water heater?
A: Regular inspection and occasional draining to remove sediment can help prolong its life.
Conclusion
Choosing an indirect hot water heater is a smart move for reliable and efficient hot water. From the durable Rheem Marathon to the space-saving Lochinvar Squire, there’s an option for every home. Consider your household size, hot water demands, and budget to find the perfect fit. With the right choice, you’ll never have to worry about running out of hot water again.
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