DESCRIPTION

OPERATING PRINCIPLE

The HeatMaster is a high performance, direct fired hot water storage heater, which has indirect heat transfer due to its Tank-in-Tank construction.

At the heart of the HeatMaster is a stainless steel cylinder through which the flue tubes pass. This is surrounded by a mild steel shell containing the primary water (neutral fluid). The outer shell extends down to the combustion chamber and even around the flue tubes. The area of the heat transfer surface is therefore much greater than that of standard direct fired water heaters.

A circulating pump fitted to the primary circuit moves the water around the tank, heating it faster and maintaining an even temperature across the primary jacket.

The burner, either gas or oil, fires onto the primary water which indirectly heats the stainless steel cylinder containing the DHW. As with all Tank-in-Tanks, this is corrugated over its full height and suspended in the HeatMaster by its hot and cold water connections.

The cylinder expands and contracts during use and this, together with the fact that cold water does not come into contact with the intense heat of the burner flame, means that limescale buildup is prevented.

This scale resistant feature, along with the corrosion resistance of stainless steel, eliminates the need for sacrifical anodes.

The HeatMaster has one very major advantage over other direct fired water heaters - because it heats the DHW with a primary circuit, this primary water can be used to provide central heating as well.

By connecting two, three, four or more HeatMasters together in a module, most hot water and heating demands can be met.

Indeed, when used in conjunction with HR and Jumbo hot water storage tanks the Heatmaster can supply even the largest hot water requirement.

Standard equipment

The HeatMaster 60 N / 70 N / 100 N and 150 Jumbo has the following items as standard :

-On/off switch

-Summer/Winter switch

-Timeclock

-primary circulating shunt pump

-primary expansion vessels

-primary safety valve

-pressure and temperature gauge

-drain valve

-body completely insulated in rigid polyurethane foam

CONSTRUCTION FEATURES

Outer body

The outer body containing the primary fluid is made of thick STW 22 steel.

TANK-IN-TANK heat exchanger

The ring-shaped inner tank with its large heating surface for producing domestic hot water is built of Chrome/Nickel 18/10 stainless steel. It is corrugated over its full height by an exclusive production process and entirely argon arc welded by the TIG (Tungsten Inert Gas) method.

Combustion gas circuit

The combustion gas circuit is paint-protected and comprises:

• Flue pipes

Depending on output, HeatMaster models contain several steel flue pipes with an internal diameter of 64 mm. Each pipe is fitted with a baffle of special steel designed to improve heat exchange and reduce flue gas temperature.

• Combustion chamber

The combustion chamber on HeatMaster models is entirely water cooled.

Insulation

The boiler body is fully insulated by rigid polyurethane foam with a high thermal insulation coefficient, sprayed on without the use of CFCs.

Casing

The boiler is covered by a steel jacket which has been scoured and phosphated before being stove enamelled at 220 °C.

The jacket of the HM 150 Jumbo is delivered separately and must be assembled on site following the instructions supplied with it.

Burner

All HeatMaster models can be fitted with pressure jet gas burners or oil burners. The HeatMaster 60, 70 and 100 can also be fitted with the low-NOx pre-mix BG 2000 gas burner.

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Heatmaster 70 N, HM 60 N, 150 JUMBO, 100 N manual Description, Operating Principle, Construction Features
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150 JUMBO, 100 N, HM 60 N, 70 N specifications

The Heatmaster series, including the Heatmaster 150 JUMBO, 70 N, HM 60 N, and 100 N, represents a breakthrough in heating technology, designed to meet diverse heating needs with efficiency and reliability. Each model in this series offers unique features tailored for various applications, making the Heatmaster brand a prominent choice in the heating sector.

The Heatmaster 150 JUMBO stands out with its high-capacity output, capable of heating larger spaces effectively. It is equipped with an advanced burner technology that ensures optimal combustion efficiency, reducing fuel consumption and emissions. The model includes a user-friendly control panel with digital displays for temperature settings and operational statuses, allowing users to maintain precise heating levels effortlessly.

The Heatmaster 70 N is engineered for medium-sized areas, offering a perfect balance of power and portability. This unit is designed with an integrated heat exchanger that maximizes heat transfer while minimizing energy losses. Additionally, it features a robust safety system, including automatic shut-off mechanisms and thermal protection, ensuring both user safety and device longevity.

The HM 60 N model focuses on compact design without compromising performance. Its lightweight structure facilitates easy transport and installation, making it ideal for temporary heating solutions such as construction sites and event spaces. The HM 60 N utilizes a dual-fuel capability, allowing it to operate on either gas or electricity, thus providing flexibility based on the availability of resources.

Meanwhile, the Heatmaster 100 N model brings together enhanced durability and high efficiency, catering to various commercial and industrial applications. This model features an advanced insulation system that minimizes heat loss, ensuring a consistent output over extended periods. Additionally, the Heatmaster 100 N is built with high-quality materials that withstand tough environmental conditions, making it a reliable choice for challenging settings.

All models in the Heatmaster series come equipped with smart technologies that enable remote control and monitoring capabilities, allowing users to adjust settings from their smartphones or other devices. This feature not only enhances convenience but also promotes energy savings by optimizing usage patterns.

In summary, the Heatmaster 150 JUMBO, 70 N, HM 60 N, and 100 N are engineered to provide effective heating solutions for a myriad of environments. Their innovative technologies, safety features, and efficiency make them leaders in the heating market, well-suited for both residential and commercial applications. Investing in any of the Heatmaster models guarantees peace of mind and performance, making them a worthwhile addition to any heating strategy.
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