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14 

 

     The

 3WOOD

 Boilers are hot water generators that operate by combustion of hard wood or soft coal.

 

They feature a high quality and extremely thick ASME class 20 cast-iron body, protected by high-density 
insulation that limits

 

heat loss.

 

The large heat exchange surface and the fins in the flue gas path ensure exceptional resistance to 
corrosion and very high

 

efficiency that remains constant over time (self-cleaning effect).

 

The combustion chamber and the upper door for loading the wood are sufficiently large to maximize the

 

burn time

 and limit the number of times the door needs to be opened for refueling.

 

The front air grille for secondary air in the upper door and the flue gas damper are easily adjusted for 
tending the fire.

 

Technology with 3 Pass: 

1

st

 Pass 

The combustion chamber gasses are carried by a special passage in the rear element.  In the same area, 
very hot secondary air is combined with combustion gases which enhance their oxidation. 

2

nd

 Pass  

The gases from the rear element are reburned in the secondary combustion chamber,  

3

rd

 Pass 

The third Pass consists of a wide-finned, self-cleaning zone which directs the smoke towards the flue 
attachment with  adjustment shutter and door cleaning. 

The 3WOOD Design 

Secondary combustion chamber 

Summary of Contents for BIASI 3 WOOD

Page 1: ...tor ____________________ Address _________________________ _________________________ Telephone Number _________________________ OWNER For service and repairs to the heating system please contact your...

Page 2: ...licensed heating contractor We urge you to contact your installing contractor or distributor if you are in question about any aspect of your boilers performance Our main concern is that you are satisf...

Page 3: ...ations 15 Layout of Main Components 16 Transporting and Minimum Clearances 17 Flue Gas Outlet and Combustion Air 18 Assembling the Casing 19 Installation of Controls 20 Installations of Flue Gas Parti...

Page 4: ...ained non electrical zone valves in the zone controlled by the overheat control When references are made to tapping numbers please refer to the specifications sections All firewood used in this boiler...

Page 5: ...or fluids to start the fire DO NOT burn garbage gasoline naphtha propane engine oil or other flammable materials DO NOT fire the 3WOOD during a power failure Use a wood stove during a power failure n...

Page 6: ...ombustion or ventilation air to boiler Should overheating occur do not disconnect electrical supply to circulator Instead open all the flow checks external to the Boilers Do not use this boiler if any...

Page 7: ...olid fuel boiler as the gas or oil fired boiler if any will be completely inoperative 1 Locate any flow check valves in the system See Pg 7 and completely unscrew the knob on the top of all these valv...

Page 8: ...x to the desired level close the loading door securely Damage or injury will result if wood is not loaded carefully generally level with bottom of flue gas damper If loaded in correctly there is a ris...

Page 9: ...mount of heat from a pound of equivalently dry wood no matter what species of tree it comes from But wood is not sold by the pound it is sold by the cord i e by volume Therefore the dense heavy woods...

Page 10: ...0 Hickory Shagbark 20 7 24 8 19 Maple Red 15 0 18 8 24 Maple Sugar 18 4 21 3 16 Oak Red 17 9 21 3 19 Oak White 19 2 22 7 18 Pine Easter White 13 1 13 3 10 Pine Southern yellow 14 2 20 5 44 In Millions...

Page 11: ...ned firewood Mixing small pieces preferably slab wood with every full load Never use only large wood usually less dry during mild weather when combustion is relatively slow The temperature in the stac...

Page 12: ...t leaking creosote Chimney Cleaning Check your chimney and flue pipe at least twice during the heating season check it more frequently if you are new to wood or believe that there is soot or creosote...

Page 13: ...and size of the coal you are using will affect the kindling rate and time required to establish a good deep coal bed There are no set rules but the following suggestions may help 1 Don t run too low a...

Page 14: ...burn time and limit the number of times the door needs to be opened for refueling The front air grille for secondary air in the upper door and the flue gas damper are easily adjusted for tending the...

Page 15: ...d with a cleanout door The heating system should be flushed cleaned of any slime and deposits vented and tested for water tightness The heating system should be equipped with a new expansion tank of s...

Page 16: ...achment 5 Loading Combustion Chamber 17 Flue Gas Damper 6 Flue Gas Baffle 18 Flue Cleanout Door 7 Ash Collection Chamber 19 Casing 8 Ash Pit Door 20 Insulation 9 Ash Tray 21 1 1 2 Flange Supply Outlet...

Page 17: ...ks extending at least 16 in front and 8 on either side of the 3 WOOD Construction of cement block pad under 3WOOD should extend at least 8 to each side of the boiler and extend at least 2 on either si...

Page 18: ...ould be installed with male ends facing down and sealed using materials that can resist temperatures of at least 700 F 1 The solid fuel fired boiler does not draw steadily smells experiences smoke rol...

Page 19: ...tening them C Insert them in the top of the four slots provided at the bottom of the boiler and secure them with the nuts NOTE The four top brackets 2 have holes for fastening the paneling to the tie...

Page 20: ...dling the temperature gauge capillary tube to make sure it is not damaged and inserting the regulator in the opening provided D Secure it to the side panels using the screws supplied E Insert pressure...

Page 21: ...d and press it fully into the rear of the boiler D Replace the cover 2 and secure it with the latch 3 E Open the door on the ash collection chamber 5 and insert the ash tray 6 Installation of Draft Re...

Page 22: ...lator counter clockwise to the red 40 mark which is the minimum position 104 F D Remove chain from bag and cut it 32 long and install the hook and eyelet E Secure the handle 10 by tightening nut 11 Co...

Page 23: ...regulator 3 to the middle position D Adjust the primary air damper 4 so it is open 1 32 at the bottom minimum opening using the screw 5 Lock it in place with the lock nut The regulator arm should be...

Page 24: ...in the line to the radiation as close to the boiler as possible This branch tee should point up and will route the piping to the dump zone There must not be a valve or any potential restriction betwe...

Page 25: ...ory authority PIPING NOTES 1 This drawing is meant to show system piping concept only 2 The installer is responsible for all equipment detailing required by local codes 3 Discharge of Pressure Relief...

Page 26: ...m Mixing valve arrangements can be added to any of the systems described in this section or in fact to any conventional heating system as well We recommend the 4 way mixing valve to control the temper...

Page 27: ...cal codes 2 Discharge of Pressure Relief Valve must be piped without valves to within 3 of the floor 3 Where required Low Water Cutoff must be installed in the Supply piping of the oil gas boiler 4 Th...

Page 28: ...nal codes Use only copper conductors The 3WOOD must be installed without changing the function of the controls or rewiring the original boiler A wiring interconnection is permitted The electrical syst...

Page 29: ...ting radiation supply and return lines from the oil or gas fired boiler Install pipe tees on the supply and returns from nipples coming out of the existing oil gas boiler NOTE Occasionally extra suppl...

Page 30: ...installer is responsible for all equipment detailing required by local codes 2 Discharge of Pressure Relief Valve must be piped without valves to within 3 of the floor 3 Where required Low Water Cutof...

Page 31: ...nal codes Use only copper conductors The 3WOOD must be installed without changing the function of the controls or rewiring the original boiler A wiring interconnection is permitted The electrical syst...

Page 32: ...32...

Page 33: ...59200637 17 Draft Regulator 59200638 18 Flue Gas Baffle Lock 59200639 19 Plate 59200640 20 Partition 59200641 59200641 59200642 59200643 21 Bottom Door 59200644 22 Hinge 59200645 23 Pin 59200646 24 Ga...

Page 34: ...tion Assembly 59200601 59200602 59200603 59200604 3 Rear Panel 59200605 59200605 59200605 59200605 4 Cover Panel 59200606 59200607 59200608 59200609 5 Right Side Panel 59200610 59200611 59200612 59200...

Page 35: ...35...

Page 36: ...rformed by a qualified heating contractor at least once a year so as to clean the entire flue gas path loading combustion chamber smoke box and flues Routine Cleaning Before starting any cleaning oper...

Page 37: ...the open expansion vessel Check operation and replace if necessary The boiler does not reach the set temperature Draft regulator Check operation and replace if necessary Chain unhooked or broken Hook...

Page 38: ..._____________ ______________________ _________________________ ______________________ _________________________ ______________________ Boiler Performance Tests GROSS STACK TEMPERATURE ROOM TEMPERATURE...

Page 39: ...and Biasi will not be responsible for 1 Components that are part of the heating system but were not manufactured by Biasi or QHT as part of the boiler 2 The workmanship of the installers of 3WOOD boi...

Page 40: ...l Web Telephone Fax info qhtinc com www qhtinc com 800 501 7697 603 334 6401 QHT Inc 3560 Lafayette RD Portsmouth NH 03801 For service please contact 3 WOOD Boiler Manufactured by Biasi S p A Verona I...

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