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PLUMBING DIAGRAM FOR THERMO-SIPHON METHOD - MAX. DISTANCE 10 FT.

COIL INSTALLATION (See Coil Diagram on Page 14)

Place one of the nuts supplied on each leg of the coil. Place coil through the holes in the back of the firebox and adjust the nuts so
the pipes stick out about 1 1/4 to 1 1/2 inches from the side of the stove. Put flat washers and nuts on the outside and tighten
within 1/4 inch. Then place fiberglass rope around each pipe the washers and tighten. You are now ready to run pipes.

THERMO-SYPHON METHOD (LESS THAN 10 FEET)

This is the simplest and most economical method, however, the hot water tank must be less than ten feet from the stove. The water
inlet, where the temp./press./relief valve is located, must be higher than the top leg of the coil. The hot water tank should be ele-
vated, if necessary, to allow for proper thermo-siphon action (the method by which hot water will circulate automatically through
the system.)
a) Shut off the hot water heater and the old water supply to it. Drain the tank completely.
b) Remove the temp./press./relief valve and discard. Install a short 3/4" nipple and tee (1) along with a new temp./press./relief 

valve.

c) Run 3/4" copper tubing along with the necessary fittings between the hot water tank and the top leg of the water coil. Install a 

3/4" 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 water 
coil install a 150 lb. pressure relief valve. (7) Run 3/4" tubing from the release exit of both relief valves downward (3) so the hot 
water may escape the event of overheating.

d) Remove the drain valve at the bottom of the tank. Install a short 3/4" nipple and tee and re-install the drain valve to the tee (4). 

Run 3/4" copper tubing with the necessary fittings between the drain/tee combination and the lower leg of the coil. After all of 
the connections have been complete, you may refill the tank. Turn on the hot water heater only after the tank has been com-
pletely refilled.

Summary of Contents for SF-150 SF-250

Page 1: ...stallation and Operator s Manual SF 150 SF 250 KEEP THESE INSTRUCTIONS Built to a Standard Not a Price 2003 CAUTION Read Warnings and Safety Considerations Recommendations for safe installation operat...

Page 2: ...sources on wood heating which you might like to purchase for your home library These include The Woodburning Encyclopedia by Jay W Shelton Wood Heat by John Vivian and The Complete Book of Heating Wi...

Page 3: ...at To Do When You Have A Problem 4 4 Chimney Details 5 CREOSOTE AND SOOT 5 1 General And Specific Creosote Maintenance Warnings 6 ELECTRICAL 6 1 Electrical Warnings 7 FUEL 7 1 Firewood and Coal Fuel I...

Page 4: ...enheit It is the owner s responsibility to fol low these recommendations This stove consumes air when it is burning It is advisable that a win dow in the vicinity be opened slight ly while stove is bu...

Page 5: ...4 3 Assembly Fasten blower to rear of stove by sliding blower into slots provided Heat Collector Diagram Firebrick Diagram SF 150 SF 250...

Page 6: ...all local and state codes See Figure No 1 of Manufactured Chimney Installations and Figure No 2 of masonry Chimney note roof clearance in accordance with NFPA 211 4 2 Common Chimney Problems In order...

Page 7: ...r to the room Your home may be so airtight that not enough oxygen is reaching the fire 6 REMEMBER open the draft controls and crack the fire door slightly before recharging the fire chamber or checkin...

Page 8: ...s on the interior sur face of the chimney and stove pipe subsequently reducing draft A SERIOUS FIRE MAY BE IGNITED IF A SUFFICIENT CREOSOTE BUILDUP IS PERMITTED Creosote condenses from the flue gases...

Page 9: ...h of its heat value in boiling off this moisture It is difficult to ignite and is sometimes hard to keep burn ing But its major evil is creosote as will be discussed in the next section Seasoning is e...

Page 10: ...Grates are removable without tools B Burns Three sizes of Anthracite You can burn pea nut or stove coal with these stoves C Exterior Shaker Lever For greater safety from getting burned and greater co...

Page 11: ...Make final adjustments to bring the stove into a level position by adjusting feet as required Most Harman stoves are equipped with adjustable feet which are adjusted simply by turning them They are 4...

Page 12: ...eep a professional chimney sweep in mind if you have access to one Steel brushes are the safest for cleaning metal surfaces Salt solu tions and some chemicals may dam age metal surfaces Do not overfir...

Page 13: ...T ONCE AND THEN OPEN THE DOOR AS THIS WILL CAUSE AN EXPLO SION OF THE UNBURNED GASES IN THE FIREBOX Close and open the draft controls one at a time to the desired setting This setting should normally...

Page 14: ...ature to stabilize 11 7 Secondary Air The two draft controls on the top door are used to allow secondary air to pass over the fire when burning coal This adds oxygen to the unburned gases primarily me...

Page 15: ...ode stainless and masonry chimneys and even terra cotta chimney liners and brick in nearby buildings Coal with high sul fur content will destroy chimneys especially fast if soot sits in the flue for e...

Page 16: ...circulate automatically through the system a Shut off the hot water heater and the old water supply to it Drain the tank completely b Remove the temp press relief valve and discard Install a short 3 4...

Page 17: ...e the drain valve at the bottom of the tank Install a short 3 4 nipple and tee and re install the drain valve to the tee 4 d Install a circulating pump 6 as shown Run 3 4 copper tubing from the circul...

Page 18: ...17...

Page 19: ...VE PARTS REPAIR AND OR REPLACEMENT AT HARMAN STOVE COMPANY S OPTION AND EXCLUDES ANY INCIDENTAL AND CONSEQUENTIAL DAMAGES CONNECTED THEREWITH WARRANTY EXCLUSIONS Failure due but not limited to fire li...

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