Bradford White Atmospheric Vented Tank Water Heater
Bradford White Atmospheric Vented Tank Water Heater Price range: $1,390.00 through $1,490.00
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Take full control of your home’s heating health with the Calefactio Service Kit. Designed for modern Ontario homes, this all-in-one wall-mounted station organizes your system’s most critical components—expansion tank, air vent, and pressure monitoring—into one safe, professional, and easily accessible location.
Expansion Tank Kit for Boilers and Combi Boilers (All-in-One Solution) Original price was: $435.00.Current price is: $395.00.

1/2″ High-Capacity Boiler Auto Feeder & Backflow Preventer (Dual Unit)

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Keep your hydronic heating system running at peak performance with a valve engineered for precise pressure management. This heavy-duty bronze combination unit is the industry standard for reliable, high-speed system filling, ensuring your boiler maintains the exact water levels required for efficient heat distribution throughout your home.

Water Heater Services in Greater Toronto Areas and Southern Ontario

The 4Most Energy Edge: Why Professional Installation Matters

In Ontario’s demanding winter climate, your boiler is the heart of your home. A DIY or substandard installation of a feeder valve can lead to system dry-firing or, worse, cross-contamination of your drinking water.

  • Certified Hydronic Experts: Our technicians ensure the pressure is calibrated specifically for your home’s vertical head and radiator requirements.
  • Code Compliance: We ensure all backflow preventers meet local Ontario building codes and ASSE 1012 standards.
  • Seamless Integration: We don't just "swap parts"; we inspect your entire expansion tank and air elimination system to ensure the new valve performs perfectly.

Warranty Highlight

Industry-Leading Protection: This unit comes with a 10 Year Manufacturer Warranty on the bronze body and internal components, plus the 4Most Energy 1-Year Labor Guarantee on all professional installations.

Features

  • Dual-Function Design: Combines a high-capacity 1156F feed water regulator with a 9D backflow preventer for a compact, fail-safe solution.
  • Rapid Fill Technology: Engineered to fill systems up to 50% faster than standard valves, significantly reducing labor time during maintenance or initial startup.
  • Automatic Pressure Regulation: Maintains a constant system pressure, automatically adding "make-up" water if the system pressure drops below the set point.
  • Anti-Siphon Protection: Prevents boiler water (containing chemicals or rust) from flowing back into your home's clean water supply if the street pressure drops.
FeatureDetails
Pipe Size1/2"
Connection TypeFNPT x Sweat Union
Body MaterialHeavy-Duty Bronze / Cast Iron
Adjustment Range10 to 25 PSI (Factory set at 12 or 15 PSI)
Max Pressure100 PSI
Max Fluid Temp212°F (100°C)
StandardsASSE 1012
Dimensions8-1/2" Length x 5-1/4" Height
  • Annual Inspection: We recommend testing the backflow preventer annually to ensure the internal check valves are seating correctly.
  • Strainer Cleaning: The integrated stainless steel strainer should be checked every 2 years to prevent debris from clogging the regulator seat.
  • Replacement: If you notice water dripping from the vent of the backflow preventer, it is a sign of internal seal wear and requires immediate service.
  • Standard Residential (1-3 Floors): The 1/2" unit is the standard for most Ontario detached homes and townhouses.
  • Large Estates / Commercial: If your system requires a higher GPM flow rate for rapid purging of large-volume systems, consult with a 4Most Energy engineer about 3/4" high-flow alternatives.
  1. System Shutdown: We safely power down the boiler and isolate the water supply.
  2. Drain & Prep: Partial drainage of the feed line to ensure a dry, clean solder joint.
  3. Precision Mounting: Installation of the valve with the union end facing the supply for easy future maintenance.
  4. Pressure Calibration: We set the regulator to your specific system requirements (typically 12-15 PSI for a 2-story home).
  5. Leak & Flow Test: We verify the backflow preventer vents correctly under back-pressure and the regulator shuts off precisely at the set limit.

Service Area
4Most Energy proudly serves the Greater Toronto Area (GTA) and surrounding Ontario regions, including Mississauga, Oakville, Vaughan, and Markham.

Frequently Asked Questions High-Capacity Boiler Auto Feeder & Backflow Preventer

While a feeder valve is an external device, 4Most Energy always suggests replacing your existing boiler feeder when installing a new boiler. This ensures that an old, worn valve doesn't cause pressure issues or system failures in your new equipment. Your 4Most Energy boiler expert will include this as a recommended addition to your installation quote.

This is usually the backflow preventer doing its job. It vents water when it senses a pressure drop in the supply line to prevent contamination. If it drips constantly, the internal seals likely need replacement.

While possible via the top screw, we strongly recommend professional calibration. Incorrect pressure can lead to "water hammer," relief valve discharge, or inadequate heating on upper floors.

No. This valve is designed specifically for connecting to a cold water feed to pressurize your boiler and hydronic system with water. If your heating system uses glycol, you require a specialized glycol feeder. Please consult our boiler experts for more details on glycol system maintenance.

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Mahvash Madani profile picture
Mahvash Madani
2 days ago
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I had a great experience with 4Most Energy. They provided all the i formation I needed and clearly explained the different options available which made it easy to make an informed decision. Their pricing was reasonable and competitive, and I really appreciate their responsiveness and flexibility in accommodating my needs. The installation team was professional, efficient, and did a great job.Overall, the entire process was smooth and stress-free. I am very happy with the service and would highly recommend them for anyone looking for reliable HVAC services.
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H Lau profile picture
H Lau
11 days ago
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Harini profile picture
Harini
17 days ago
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We had a great experience with Rey and his team during our new Rinnai boiler installation. The technicians did an amazing job and worked efficiently. The technician Sam was knowledgeable, professional, and respectful throughout the installation. He took the time to answer all my questions and made sure everything was properly checked before finishing the job. They arrived on time and completed the boiler installation on schedule. We are very happy with the service and would definitely recommend them to anyone looking for reliable and professional HVAC service. Thanks.
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Vip C.
17 days ago
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+0
Excellent service and very reasonable pricing for a new AC installation. The team arrived right on time, provided a smooth and professional installation, and there were absolutely no hidden costs. Communication was transparent, proactive, and consistent throughout the entire process. Highly recommend them to anyone looking for reliable and honest HVAC service.
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kevin liu
20 days ago
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Brian Johnston profile picture
Brian Johnston
22 days ago
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+1
I was very pleased with the competitive pricing I got specifically from 4most energy. I contacted many companies to get their best quote. Sometimes there are even daughter or sister companies that will give you better quotes than the parent companies. It's best to check around for the identical product with installation from many companies. I was also pleased with the installers. They did have to cut away some insulation to install the Rinnai RX199 on the outside wall the house. Not sure if they should have tried replacing that insulation afterwards, but won't complain about the job they did because I think I got the best price on the market after getting quotes from about a dozen companies.
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Joseph Spitale profile picture
Joseph Spitale
37 days ago
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We recently had a Navien Combi boiler installed by 4Most Energy and had a great experience from start to finish. Rey was our sales representative and Sam was our technician, and both were excellent to work with. They arrived on time, the installation was fast and efficient, and everyone was friendly and professional throughout the process. Sam did a great job with the installation, and everything is working perfectly. We’re also very happy with the Navien Combi boiler itself. Overall, we couldn’t be happier with the service, the installation, and the product. We would definitely recommend 4Most Energy.
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Da big_Guy
38 days ago
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Rey, Ben and Amad thank you very much for the amazing work on my hot water tank purchase and installation. You a have a loyal customer fir life. I will make sure my family and friends use your service. Zoran.
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Marvin Harrison profile picture
Marvin Harrison
40 days ago
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I contacted 4Most Energy to replace my 14 year old AC unit. Their intake process was smooth. They provided a reasonable quote the same day. The installation of the new AC unit was scheduled and the service provided by Farzad and his associate was completed within a reasonable time. They did a great job on the installation, hauled away the old equipment, and left the job site (both indoors and outdoors) in good condition. I would not hesitate to recommend 4Most Energy for your heating and cooling needs.
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Rodney BROWN
40 days ago
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Scheduling was quick and easy. The team showed up on time, were quick and efficient and did an overall good job!
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Jag Jasani profile picture
Jag Jasani
41 days ago
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Great job Rey, Sam and team! My tankless water heater was broken for two months and after getting the run around from Enercare and Reliance, I decided on purchasing a Navien from 4Most Energy and they did a great job explaining the process and installing it the next day. Thank you for the top notch service!
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Maryam Badakhshi profile picture
Maryam Badakhshi
48 days ago
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Hamid installed a new heater for us. We had a great experience. He and the team were professional and the work was done in a day. We really appreciate their promptness. We’d definitely recommend Hamid.
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Chris Luc profile picture
Chris Luc
51 days ago
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Great job by Hamid. Thanks
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Adrian Cann profile picture
Adrian Cann
53 days ago
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Great service, great price, great technicians, big job but the work was executed with perfection!!!
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Charles Hawkes profile picture
Charles Hawkes
57 days ago
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Arrived promptly, installed new water heater in a professional manner, checked the installation for any gas or water leaks, cleaned up the work site. Very satisfied with the service and pricing. Strongly recommend 4MostEnergy.