Triangle Tube water heaters are sold primarily through plumbing/hydronic/solar specialty distributors and authorized installer networks. Limited big-box presence reflects the specialty/commercial nature of the product category.
Where to buy Triangle Tube water heaters
Specialty plumbing/hydronic distributors
Hydronic and boiler-specialty distributors are the primary Triangle Tube channel:
- Ferguson Enterprises (hydronic and boiler division)
- F.W. Webb (hydronic specialty)
- Slakey Brothers, Hajoca Corporation
- Local plumbing/heating supply houses
These supply houses stock standard Triangle Tube models and can special-order specialty configurations.
Solar-specific retailers (for solar models)
- SolarHotWater.com
- The Solar Store
- SolarDirect.com
- Local solar dealers
Online specialty
- SupplyHouse.com — hydronic and solar parts and units
- Triangle Tube brand website — direct sales or authorized dealer locator
Authorized installer network
Triangle Tube maintains an authorized installer network. Authorized installers receive factory training on system design, sizing, and commissioning. Many Triangle Tube models are sold through these installers as complete packages including design, installation, and ongoing service.
Pricing expectations
Triangle Tube systems span a wide price range depending on configuration:
- Residential indirect-fired tanks (Amtrol, Triangle Tube Smart): $1,200–$3,500
- Solar DHW collector + tank kits: $4,000–$8,500 for complete residential systems
- Condensing boiler/water heater combos (HTP, Triangle Tube): $2,500–$6,000+
- Commercial flow heaters (Triton): $800–$3,500
Installation costs are additional and typically substantial for these specialty systems — $1,500–$5,000+ depending on complexity.
What to verify before purchase
- System sizing for your application (load calculation should be done by qualified installer)
- Compatibility with existing infrastructure (boiler, electrical service, roof space for solar, etc.)
- Required installation expertise and authorized-installer availability in your area
- Local permitting and code requirements
- Available rebates and tax credits (solar systems especially)
- Annual maintenance cost expectations
Installation considerations
Triangle Tube system installation: high — requires Prestige boiler or compatible primary loop, specific control wiring, sensor placement. This is not a DIY job for most homeowners. Authorized Triangle Tube installers have:
- Factory training on system design and sizing
- Access to OEM parts and warranty service path
- Experience with the integration requirements (boiler controls, solar mounting, etc.)
- Ability to commission the system properly (sensor calibration, control configuration, glycol charging)
Common purchase mistakes
- Buying components without confirming system-level compatibility (e.g., indirect tank without matching boiler primary)
- Skipping installer authorization (warranty may be voided)
- Undersizing solar systems for actual hot-water demand
- Selecting condensing equipment without verifying condensate-drain access
- Buying online without considering installation cost (which is often 50–100% of equipment cost for specialty systems)