Water coil option

Example 1: Thermo-siphon Method. This is the simplest and most economical method, providing the existing water heater (storage tank) is within 10 feet of the stove. The water inlet, where the Temp/Pressure relief valve is located, must be higher than the top leg of the water coil. The storage tank should be elevated, if necessary, to allow for proper thermo-siphon action.

A). Turn off the water heater and the water supply to it. Drain the tank completely.

B). Remove the Temp/Pressure relief valve and discard. Install a short ¾” nipple and tee (1) along with a new Temp/Pressure relief valve.

C). Run ¾” copper tubing, along with the necessary fittings, between the storage tank and the top leg of the coil. Install a ¾” vent elbow and automatic “float type” air vent (2) in the high point of the line. Within two feet of the top leg of the coil, install a 150 lb. pressure relief valve (7). Run ¾” tubing from the release exit of both relief valves, downward (3) so that the hot water may escape in the event of over-heating.

D). Remove the drain valve, at the bottom of the storage tank. Install a ¾” nipple and tee, and reinstall the drain valve to the tee (4). Run ¾” copper tubing, with the necessary fittings, between the drain/tee combination and the lower leg of the coil.

After all of the connections are com- pleted, you can refill the tank. Restore power to the water heater ONLY after the tank has been completely refilled.

EXAMPLE 2: Circulator

Method. (more than 10 feet.)

Example 2: Circulating pump method. Used when the distance is more than ten feet or when the stove is on a higher level than the existing water heater. In addition to a circulator, you may want to add a aquastat to control the pump according to water temperature. This is not necessary if the circulator is left run

continuously. Another option is a gate valve placed near the circulator to control the rate of flow. A). Turn off the water heater and the water supply to it. Drain the tank completely.

B). Remove the Temp/Pressure relief valve and discard. Install a short ¾” nipple and tee (1) along with a new Temp/Pressure relief valve.

C). Remove the drain valve, at the bottom of the storage tank. Install a ¾” nipple and tee, and reinstall the drain valve to the tee (4).

D). Install a circulating pump (6) as shown. Run ¾” copper tubing from the circulator to the lower leg of the coil. This is where the optional gate valve (5) can be installed.

E). Install a ¾” tee and a 150 lb. pressure relief valve (7) in the top leg within 2 feet of the top outlet of the wa- ter coil.

F). Complete the copper line by running it back to the tee at the top of the water tank, making sure to install a vent elbow and automatic air vent (2) at the high point of the line. The optional aquastat can be installed in this line a maximum of six feet from the stove. The aquastat must be a “close on temperature rise” type and must be wired and set to turn on the circulator when the water temperature reaches 120˚ Farenheit.

The system is now ready to be refilled and power restored to the water heater ONLY after the tank is filled. 11

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Harman Stove Company SF 250 manual Example 2 Circulator Method. more than 10 feet
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SF 250 specifications

The Harman Stove Company SF 250 is an impressive wood-burning stove that exemplifies exceptional craftsmanship, efficiency, and modern design. Renowned for its ability to provide reliable heat while enhancing the aesthetic of any home, the SF 250 has become a favorite among homeowners looking for an efficient yet stylish heating solution.

One of the standout features of the SF 250 is its impressive heating capacity. With the ability to warm spaces of up to 2,000 square feet, this stove is well-suited for larger rooms or open-concept areas. The durable steel construction ensures longevity and resilience, allowing it to withstand high temperatures and frequent use. The stove’s sleek design incorporates a clean, contemporary look that can seamlessly blend into various interior styles, making it a versatile choice for any setting.

The SF 250 also boasts advanced combustion technology, which means it burns wood more efficiently than conventional stoves. This not only provides optimal heat output but also reduces emissions and pollution, making it an environmentally friendly option. The secondary combustion system maximizes the burn of gases, allowing the stove to extract more energy from the same amount of wood, leading to longer burn times and less frequent reloading.

Additionally, the Harman SF 250 includes a large viewing window, allowing users to enjoy the mesmerizing ambiance of the fire while also benefiting from heat radiating into the room. This feature adds a cozy atmosphere to the home, providing both warmth and aesthetic appeal. The easy-to-use air control system allows for precise adjustments to the burn rate, giving users complete control over the heat being generated.

The stove is designed with user convenience in mind, featuring an ash pan that simplifies cleanup and maintenance. The easy access to internal components also allows for straightforward servicing, ensuring that your stove remains in peak condition for years to come.

In summary, the Harman Stove Company SF 250 is a remarkable blend of efficiency, style, and technology. Its powerful heating capabilities, advanced combustion system, and user-friendly features make it a top choice for those seeking a dependable wood-burning stove. Whether for a cozy evening or cold winter nights, the SF 250 provides both comfort and elegance, making it a worthy investment for any home.
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