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HOMEBIOGAS HBG 4.0 Owner's Manual

Household biogas system
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HBG 4.0 HOUSEHOLD BIOGAS SYSTEM
OWNER'S MANUAL
VERSION 150221
© 2021 HOMEBIOGAS
HB4/OM/150221

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Summary of Contents for HOMEBIOGAS HBG 4.0

  • Page 1 HBG 4.0 HOUSEHOLD BIOGAS SYSTEM OWNER’S MANUAL VERSION 150221 © 2021 HOMEBIOGAS HB4/OM/150221...
  • Page 2 Introduction Safety System Assembly Activating the System Daily Operation System Care Troubleshooting Tech Specs Homebiogas Fertilizer Warranty...
  • Page 3 The HOMEBIOGAS household biogas system turns organic waste like food scraps and animal manure into biogas, which can be used for cooking, and natural liquid fertilizer, which can be used for gardening. Biogas is generated in the system by the anaerobic (without oxygen) fermentation of organic matter. Biogas is a flammable gas that is lighter than air, composed mainly of methane and carbon dioxide.
  • Page 4 main parts of the system plunger & inlet cover plunger slot integrated pressure system biogas lter waste inlet sink gas outlet pipe fertilizer outlet gas valve bottom section: digester tank drainage valve...
  • Page 5 Use only devices compatible with No open flames or sparks within 5 Only install system outdoors so ex- diameter. Contact Homebiogas if or adapted for biogas use. Visit meters (15 ft.) from the system. cess gas can be released safely.
  • Page 6 system assembly From Assembly to Usage: wait 1 day 2 hours 1 hour 1. choose a suitable site 2. assemble the system 3. install gas pipes & drainage 4. activate system 1 - 3 weeks * 5. continue feeding & use system normally! check for ammable gas 6.
  • Page 7 & preparation It is important to choose and prepare the right spot for your HomeBiogas system before installation to ensure optimum performance and avoid potential damage to the system. Failure to set up the system according to the following instructions could void the HomeBiogas warranty.
  • Page 8 0.5m 0.7m 2.5m 0.5m 4.2m prepare at least 2.7 x 5.2m space system should be installed close prepare a rm, at surface clear of for the system obstructions - do not place on soft to kitchen/cooking area (0.5m side, 0.7m front clearance for or unstable ground maintenance &...
  • Page 9 preparation for gas pipe installation The system can be connected to a stove/appliance up to 18m away (18m gas tubing provided). Plan a suitable route for the gas pipe to ensure optimum gas ow and prevent damage to the pipe - follow detailed instructions for gas pipe installation on page 26, after assembling system.
  • Page 10 system parts (box B) sink & inlet pipe assembly gas outlet over ow plunger connecting pipe clearing rod combined fertilizer & gas outlet gas lter 10mmø indoor gas tubing, 3m (20mm connector attached) 20mmø outdoor gas tubing, 2x7m combined gas tank + digester (box A) combined gas tank &...
  • Page 11 parts bag 1 gas tank sand-packs LUBRICANT 120mm lip seal rubber ring pipe/tubing joint lubricant (1 spare) parts bag 2 20mmø gas tube screw connector & tting band for 10mmø bands for 20mmø gas tubing gas tubing 20mmø gas tube straight & L- connectors 20mm gas tube clamps &...
  • Page 12 HomeBiogas logo is located at the FRONT end of the system back front (gas, fertilizer out) (input sink, waste in)
  • Page 13 LUBRICANT parts bag LUBRICANT...
  • Page 14 Improper installation of inlet pipe & combined outlet in the HomeBiogas system can damage the digester’s inner liner, causing a leaking digester tank when lled with water. Follow the steps below to properly insert the pipes, to prevent damage and ensure a functioning system.
  • Page 15 LUBRICANT parts bag LUBRICANT...
  • Page 16 Inlet sink orientation: long cord towards front short cord & plunger slot towards back...
  • Page 17 back front Before lling the digester, make sure it is (gas, fertilizer out) (input sink, waste in) in a suitable location, chosen according to the site selection criteria in page 7-8. The digester must be placed on a attened, level surface! with another person’s help, stretch out digester inner lining with the 4 corner strings...
  • Page 18 * pipes must point inwards when lling * rest hose on digester & enter inlet pipe from opposite side...
  • Page 19 HomeBiogas if any leaks are seen.
  • Page 20 LUBRICANT...
  • Page 21 90°...
  • Page 22 sand-bags use dry sand only...
  • Page 24 remove 2 protective stickers from cover & base of gas lter...
  • Page 25 for all gas pipe ttings: soften pipe in hot water for easy insertion parts bag marking on gas tank outlet pipe must be facing upwards...
  • Page 26 GAS PIPE INSTALLATION there should be NO U-shaped bends along the pipe, where It is important to install the pipes at a slight angle from the system - the lowest point(s) will be used to drain water water will collect and block gas ow. collected in the tubes.
  • Page 27 for all gas pipe ttings: soften pipe tip in hot water for easy insertion parts bag purchase 10mm closed...
  • Page 28 drainage kit prepare suitable bucket/container (create holes in side + bottom) install drainage outlet at lowest condensed water vapor may collect in the point along 20mm gas tubing! gas pipe over time as the stove is used, and must be emptied with the Drainage Outlet so that gas ow will not be blocked.
  • Page 30 Please check your system with the following list and con rm that each item has been completed. This will ensure your system functions smoothly and prevent potential system damage. Gas Outlet Cap (G) is inserted properly and locking Waste inlet & Combined outlet inserted completely Pipes in O, G &...
  • Page 31 Digester is placed on strong, flat, level surface (refer Digester is placed in sunny location near kitchen, away Digester filled until water flows from fertilizer outlet page 7-8) from windows/sitting areas (refer page 7-8) Marking on Gas Tank Outlet pipe is facing upwards Combined outlet is aligned 90°...
  • Page 32 activating the system Wait a day after assembly and verify there are no leaks before starting activation. Activate the system in warm weather. (average day/night temperature at least 25 °C (77 °F) for the first 4 weeks). To activate, you will need: 200 liters (52 gallons) of animal manure from herbivores, fresh (wet and up to 2 days old) & clean as possible from straw/stones/earth.
  • Page 33 open The gas produced at first may contain a high level of CO 2 and will not ignite easily If the flame is not steady or the gas does not ignite, emp- ty the gas tank by unscrewing the Gas Valve Connector until the gas tank has completely deflated.
  • Page 34 daily operation how to feed the system: part parts Kitchen Waste: Animal Manure: Pour the kitchen waste/manure slurry into the sink Turn the plunger 180°, then lift and gradually to prevent splashing. Mix manure well with rest the plunger on the plunger Fill a container with twice the amount of slot on the back of the sink.
  • Page 35 Push the overflow clearing rod through the Push the plunger all the way down the inlet fertilizer overflow channel a few times to keep pipe, then make sure to turn plunger 180° the opening clear from undigested solids. For to “lock” it in place and properly seal sink. manure-only systems, you may remove the overflow/fertilizer outlet cover.
  • Page 36 what to feed the system: DO NOT FEED: garden waste, like: Animal Manure Kitchen Waste up to 25 liters per day up to 12 liters (3gal) per day straw (25 liters manure + 50 liters water = 75 liters slurry) grass dry leaves Animal waste, as clean as possible from...
  • Page 37 Cold Weather Operation 0°C < 20°C (68F) The fertilizer produced by the HomeBiogas system may be Gas production will slow down when the system’s average safely used on your vegetable patch, flower beds or fruit trees surrounding temperature drops below 20 °C (68F). Feeding the etc.
  • Page 38 system care frequent care Make sure that the digester tank is completely Empty the condensed water accumulated in filled with water. the gas pipes. When the tank is filled, liquid should pour from the fertilizer outlet Biogas contains water vapor that may condense during cooler nights when the system is fed.
  • Page 39 * System components are rated for 10-year lifespan. After 10 years check materials and contact HomeBiogas for replacement parts if required. Replacing the Gas Filter When gas burns with unpleasant odor Contact the company or your distributor for a new filter.
  • Page 40 (see page 41 for details on pH checking). tube. Blowing through the tube or using an electric air pump to Contact HomeBiogas for assistance. pass air through the tube will help to clear out collected water. iii. Close drainage connector and reopen gas valve.
  • Page 41 If the system still produces non-flammable gas after carrying out the chlorine tablet installed. previous steps, please contact us at support@homebiogas.com. If the system’s pH is lower than 6.5, add fresh manure to the system and mix well with plunger, according to the pH level measured: (prepare suitable containers/piping to drain away the digester liquid which will flow out when adding the manure.)
  • Page 42 If the rubber seal is fine, your filter should be replaced. Contact Homebiogas or your local distributor for a replacement. 3. Fertilizer smells bad. It is normal for the system’s liquid to have a mild fermenting/’organic’...
  • Page 44 HBG 4.0 household biogas system technical specifications: System volume 3.9m Gas tank volume 1200ℓ 2650ℓ Digester tank volume Dimensions Assembled 300 x 150 x 135 (cm, L x W x H) Weight Assembled (approx.) 2900 kg Gas pipe max length...
  • Page 45 The presence of both macro & micronutrients makes HomeBiogas fertilizer a good choice for most gardening and small-scale agricultural purposes. HomeBiogas fertilizer, while providing many benefits to plants, does not help to improve soil properties. Hence, it should be paired with some amount of soil amendment for best performance.
  • Page 46 Customer and for a warranty period of twenty four (24) months from the date of delivery to Customer (the ”Warranty Period”) shall be free from defects in workmanship and materials. During the Warranty Period, HomeBiogas shall repair or replace at its option and expense any part which fails to comply with the Warranty specified above in Sections 1.1 Shipment of the re- placement parts to Customer’s original destination shall be at the expense of the Customer.
  • Page 48 © 2021 HOMEBIOGAS HB4/OM/150221...