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Replacing the hot water coil in the furnace 

 
In areas where there is a lot of lime or other minerals (or hard water), it may be 
necessary to clean out or replace the hot water coil in the furnace. Thankfully, this is an 
easy job. On some other models, it can take 2 hours or more to do this – if they even 

have

 a built-in coil! 

 

 

 
The water coil is under a steel plate at the back/top of the furnace. We’ve lifted up the 
insulation to make it easier to see. 
 

 

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Summary of Contents for Shaver Pro 140

Page 1: ...FOR THE SHAVER OUTDOOR WOOD and COAL BURNING FURNACE Manufactured by Weld Rite Inc 328 Hwy 62 West Salem Arkansas 72576 870 895 3104 or 3111 http www outdoor wood furnaces com The BEST Outdoor Wood F...

Page 2: ...ide Wood Burning Furnace field We sell furnaces as far away as Canada the UK Ireland the Ukraine and Spain We deem it important to provide you with this user s and maintenance manual to allow you to u...

Page 3: ...at Exchanger and transition pictures Bleeding a Heat Exchanger Insufficient Air Flow How to prevent the water from freezing Connection of Power to Furnace Wiring your home thermostat Hooking up the Ho...

Page 4: ...x 48 5 x 90 tall 1400 lb shipping weight Shaver Pro Series 165 165 000 BTU and a 170 gallon water tank 4 000 sq ft 45 x 54 5 x 90 tall 1610 lb shipping weight 1745 with firebox Shaver Pro Series 250 2...

Page 5: ...rdwood and coal Burning other materials can reduce the life of the furnace and will void your warranty Always open the ash door bottom before you open the firebox door top Open Loading door pausing mo...

Page 6: ...0 Year 15 20 20 Year 21 to forever 10 We will give you the percentage discount on the repair or off a replacement boiler Furnace will be repaired or replaced whichever is less expensive Shipping not i...

Page 7: ...ing due to intensive use the ash box door is left open When the ventilation convection fan is left off with high fires Failure to clean out ash Moisture combined with ash will eat through a furnace in...

Page 8: ...8 All warnings in this manual on Page 5 and elsewhere and all maintenance items on Page 42 constitute part of this warranty...

Page 9: ...e warranty ___________________________ Dealer Purchased from if purchased from the factory put Weld Rite Inc _________________________________________________________ Dealer Address __________________...

Page 10: ...if the furnace is too close to a building See Page 13 for additional information We recommend a distance of at least 100 feet if prevailing winds blow towards any other residence not served by the fu...

Page 11: ...r is ALWAYS better Higher moisture content wastes energy boiling off water Wood with a lot of moisture can cause more smoke than the chimney can dispose of It also puts a lot of moisture into the ash...

Page 12: ...he Thermostat Controls work The only visible addition to the heating system inside your home is a 2nd thermostat which is located near the existing thermostat if possible The thermostat is installed s...

Page 13: ...as if running through an attic or crawl space or any non heated area The insulation of choice is Solarguard or Microfoil or Reflextix if Solarguard is unavailable You can find out where to purchase S...

Page 14: ...ptional outdoor hot water supply for a faucet or steam cleaner hookup 9 Drain 10 Blower fan to feed oxygen to fire 11 Armstrong Astro 30 Pump one included to circulate water 12 Thermostat for blower 1...

Page 15: ...iew the recommended stack heights on page 9 D Do not locate near any combustible materials gasoline or other flammable liquids or gases E Locate away from dry grassy areas dry leaves brush and trees F...

Page 16: ...ze Shaver Pro Series 250 48 x 136 Suggested pad size Shaver Pro Series 290 48 x 144 Suggested pad size Shaver Pro Series 340 48 x 154 Suggested pad size The PVC pipe is always buried below the frost l...

Page 17: ...very After placing your new Shaver Furnace on the concrete pad we normally put it on the pad for you if we deliver it you are ready to continue the installation process The piping can go in any direct...

Page 18: ...way from the Pex pipe Be sure to check YOUR LOCAL BUILDING CODES The water lines must be buried below the frost line to prevent freezing The depth of the trench varies in different regions of the coun...

Page 19: ...Pex pipe will need to be installed underground for the water lines and the 12 3 power wire from the second location The 2nd location is wired as the first No thermostat wire is normally needed Locate...

Page 20: ...and extension at the 2nd outlet if not being used to fill using a funnel Keep it capped when not using for chemicals Alternatively you can use a funnel and hose on the overflow tube DO NOT block off t...

Page 21: ...available from Alternative Heating and Supplies in CT You need 1 Pex Pipe for the main pumps to the heat exchanger The Pex Pipe connected at the bottom of the pump runs to the house and normally runs...

Page 22: ...also a good idea to put TWO shut off valves on the return lines This helps bleed the system of air and is a big help when troubleshooting Shown on next page ALL of these parts are available as an inst...

Page 23: ...r more information Adding two shut off valves Available as a kit 1 You will need a shut off valve with 1 Poly pipe connectors on both ends 2 You will need a 1 Poly pipe connectors and adapter to conne...

Page 24: ...led Ideally there should be no splices in any water lines If you have to splice two lines together use SharkBite fittings The IN fitting should be at the bottom of the lowest point bottom unless insta...

Page 25: ...rmine how much tape is needed around it A different amount thickness may be needed on different sides You can purchase different thicknesses of tape so that it will fit and seal properly Place foam ta...

Page 26: ...you can seal off the ends of the heat exchanger and the hole you made in the plenum with foil tape made for ductwork Input lines should be at the bottom unless otherwise marked Installing a Heat Exch...

Page 27: ...lenum Item B Crimp the sheet metal to the edge of the heat exchanger This is item G in the diagram above Page 23 Using channel lock pliers to crimp it it makes a very nice professional looking install...

Page 28: ...A transition was built here so that a larger heat exchanger could be used with smaller ductwork A customer s photo of his heat exchanger installation 28...

Page 29: ...u need more airflow the pulleys if used can usually be changed on the fan and or motor to give a higher fan speed If you can t get enough heat a slow fan may be an issue Many furnaces have 2 or 3 spee...

Page 30: ...or State Electrical Code WARNING Do not touch the terminals or wires on the thermostat THEY ARE HOT AND DANGEROUS ALWAYS cover the thermostat with a solid receptacle box cover Not shown here or a piec...

Page 31: ...black wire FAN SWITCH You can utilize a standard outdoor light switch in this line to turn the fan off while refueling the furnace Simply wire it in the power line to the thermostat or between the the...

Page 32: ...r if you re not sure about this part or if you are dealing with an indoor fan in your furnace that is 220V To add a switch for the pump so that it will run constantly when you are away simply wire a s...

Page 33: ...a simple 2 wire thermostat just use those 2 wires to connect to Terminal G and the wire you just removed If you are using a thermostat with more than 2 wires find the two wires that run to the mercury...

Page 34: ...cally used 2 wire bi metal thermostat The two wires you need to connect are at 3 and 5 in this example of a 2 wire bi metal thermostat They are wired to the G Terminal on the existing thermostat and t...

Page 35: ...side edge above below or beside the existing thermostat at the bottom element It s about 8 at your local hardware store Smear the bottom of the thermostat with dielectric grease available at auto part...

Page 36: ...sly 24 7 instead of cycling on and off as needed They don t use a lot of electricity about 80 watts but it is increased wear and tear Eliminating the built in water coil reduces the cost of the furnac...

Page 37: ...Customer supplied photograph Make sure using a single wire is to code in your area 37...

Page 38: ...re the pump goes off and on to control the water temperature The main problem is that when no heat is being extracted out of the furnace the water can boil It is best to utilize a system whereby the p...

Page 39: ...system usually pressurized remains undisturbed and functions exactly as it did before All pumps and controls remain the same The system s return water goes through the heat exchanger on the right and...

Page 40: ...Set the existing boiler water thermostat lower than the temperature of the outdoor boiler Plate exchanger Stainless Steel Shell and Tube Heat Exchanger for pool or spa 40...

Page 41: ...to the back of the thermostat can help in heat transfer Using an aftermarket digital thermostat is an alternative and will have a sensor that can be placed in the water possible getting more accurate...

Page 42: ...new furnace 1 After the furnace has been filled and running separate the 2 valves shown above at the Pex Pipe between them after turning off both valves so that water won t drain out 2 Insert the lef...

Page 43: ...g season check the sealing of the silicone seal The silicone seal withstands high heat and molds itself to the shape of the door providing an excellent seal that won t deteriorate like a rope seal Hig...

Page 44: ...e necessary to clean out or replace the hot water coil in the furnace Thankfully this is an easy job On some other models it can take 2 hours or more to do this if they even have a built in coil The w...

Page 45: ...he coil out the top A 50 foot copper coil is readily available at most hardware and home improvement stores already coiled up Simply straighten the ends and reattach the Pex pipe Alternatively you cou...

Page 46: ...ese are standard hot water heater thermostats available for about 5 8 at any good hardware store In most cases the flap on the side of the fan should only be open to 1 3 6 Turn off both valves so that...

Page 47: ...fan is on you should have heat In many cases air might be trapped in the heat exchanger and the bleeding procedure below will need to be performed NOTE If you have poor draft or a downdraft heat up t...

Page 48: ...r http www marsolve com marsdis htm Also recommended and much safer is Safe React Formula E is designed as a direct replacement for Muriatic acid It is effective for pH adjustment industrial descaling...

Page 49: ...up A small 2000 watt generator will power it all AND give you extra power for lights Do Not Operate under Pressure Keep the overflow tube clean and free of debris bugs etc DO NOT close it off It is s...

Page 50: ...ation following the instructions will not void the warranty ___________________________ Dealer Purchased from if purchased from the factory put Weld Rite Inc __________________________________________...

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