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Heat-Flo, Inc. is a full service design and manufacturing firm dedicated to providing high quality, cost effective solutions for hydronic, solar, and electric based hot water heating system applications, and hydronic and radiant heating applications. Heat-Flo originates all product design, manufacturing, sales, and ongoing market support at our facility in Uxbridge, Massachusetts, USA.  Please inquire for more Product Detail.

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• All operating components located indoors for weather
• Capacities up to 250,000 BTU/hr.
• Accommodates vent pipe runs up to 100 equivalent feet.
• Regulated, consistent draft throughout burner cycle.
• Built-in Fan Proving Switch interlocks with gas valve.
• Available with 24-volt Relay or Post Purge Timer/Relay.
• Kit includes everything needed for installation, except vent pipe. (*GPAK* includes DC-4 Draft Control)
• Durable, heavy-duty aluminum Vent Hood.
• AGA design certified for gas furnaces, boilers, pool
• heaters, unit heaters and commercial water heaters.
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Series 548 Hydro Separator. This device consists of several different functional components, each meet specific requirements, typical of the circuits used in heating and air-conditioning systems. • Hydronic separator: To keep connected hydronic circuits totally independent from each other • Dirt remover: To permit the separation and collection of any impurities present in the circuits. Provided with a valved connection with discharge piping. • Automatic air vent valve: For automatic venting of any air contained in the circuits. Provided with a valved connection for maintenance purposes. The hydronic separator should be sized according to the maximum flow rate value at the inlet. The selected design value must be the greatest between the primary circuit and the secondary circuit. When a single system contains a primary production circuit, with its own pump, and a secondary user circuit, with one or more distribution pumps, operating conditions may arise in the system whereby the pumps interact, creating abnormal variations in circuit flow rates and pressures. The hydronic separator creates a zone with a low pressure loss, which enables the primary and secondary circuits connected to it to be hydraulically independent of each other; the flow in one circuit does not create a flow in the other if the pressure loss in the common section is negligible. In this case, the flow rate in the respective circuits depends exclusively on the flow rate characteristics of the pumps, preventing reciprocal influence caused by connection in series. Therefore, using a device with these characteristics means that the flow in the secondary circuit only circulates when the relevant pump is on, permitting the system to meet the specific load requirements at that time. When the secondary pump is off, there is no circulation in the secondary circuit; the whole flow rate produced by the primary pump is by-passed through the separator. With the hydronic separator, it is thus possible to have a primary production circuit with a constant flow rate and a secondary distribution circuit with a variable flow rate; these operating conditions are typical of modern heating and cooling systems.

Z-one valves are used to automatically shut-off the flow or redirect hot and chilled water in hydronic heating and air conditioning systems. The motorized two position, on/off/, spring return A1 series actuator has an end mounted push button for quick installation to valve body. The actuator is equipped with or without auxiliary switch and configured Normally closed or Normally Opened with wire or terminal connections.

Grundfos UPS15-35SFC is a 1/6HP, 3-Speed Circulator Pump with stainless steel housing, suitable for a wide range of open loop and closed loop applications, including radiant heating, hydronic heating, solar, hot water recirculation, chilled water cooling and many others. 3 speeds of the Grundfos UPS15-35SFC model allow to adjust pump's parameters to match system requirements and achieve optimal performance.

Wet rotor circulation pump, with union connection. Bronze body for domestic hot water applications

In heating and air conditioning control systems, the circulation of water containing impurities may result in rapid wear and damage to components such as pumps and control valves. It also causes blockages in heat exchangers, heating elements and pipes, resulting in lower thermal efficiency within the system. The dirt separator separates off these impurities, which are mainly made up of particles of sand and rust, collecting them in a large collection chamber, from which they can be removed even while the system is in operation. This device is capable of efficiently removing the smallest particles, with low head loss.

Grundfos UP15-18B7/LC, Circulator Pump, 115V 9H Our Hot Water Recirculation systems save you time, money, and energy, by circulating hot water through your household plumbing without wasting it down the drain. Grundfos has a recirculation that is perfect for your new home! Grundfos 59896229 UP15-18B7/LC, Circulator Pump, 115V 9H Features: Built-in motor protection for long life Stainless steel construction for corrosion resistance Multiple accessories for a variety of applications Whisper-quiet operation for sound sensitive installations

The revolutionary Fernox Total Filter TF1 is a unique hydrocyclonic and magnetic in-line filter that removes and contains magnetic and non-magnetic contaminants from central heating systems. Easy to install with no additional parts needed, the Total Filter TF1 has also been designed as a dosing point for the Fernox 'F' range of chemical water treatment products to ensure the system's long lasting performance.

The new Fernox TF1 in-line filter can be connected directly onto 22mm and 28mm pipe work using the valve fittings provided and can be positioned flush to a wall in existing pipe work. Once installed, it can be cleaned in seconds and easily and without having to disassemble or remove the unit.

"The Fernox TF1 has been specifically developed to provide installers with an easy to fit filter that helps maintain the performance and longevity of a central heating system," explained Francine Wickham, European Marketing Director. "The hydrocyclonic and magnetic filters remove and contain contaminants so that the system can work effectively. The Fernox TF1 filter then provides an easy way for installers to dose the system for long term protection."

All Fernox TF1 filters are manufactured in the UK and each one tested so installers can be assured of performance and reliability every time.

Hydrocyclonic and magnetic in-line filter

• Unique action, removes all contaminants magnetic and non-magnetic
• Fits vertical and horizontal pipe work
• Dosing point for Fernox ‘F’ range products
• Cleaned in seconds without removal or disassembly
• Will not block or restrict flow
• All valves and fittings included