Heating with logs and wood chips

1
Heating withlogs and wood chips
2
About Spark Energy

• NZ marketing/sales agent for Koeb (Kob) biomass
  boilers, with three main types
• ECO residential/semi-commercial, for use with
  logs, outputs in 35kW-150kW range
• DYN residential/semi-commercial, for use with
  logs, chips or pellets, outputs in a 35kW-85kW
  range
• PYROT commercial, for use with chips, pellets or
  shavings, outputs in 100kW-540kW range, lt35MC
• PYRTEC commercial/semi-industrial, for use with
  chips, pellets or shavings, outputs in
  390kW-1.2MW range, lt55MC

3
Latest technologydo you need it?

• Yes, high efficiency makes huge difference
• Lower ongoing fuel cost during 20yr life of
  boiler
• Yes, ultra-low emissions futureproof
• Local authorities becoming tough on dust
  polluters
• Efficient combustion helps lower particle
  emissions
• Yes, smart controls help lower fuel useage
• Can be integrated with heat stores and solar
  collectors
• Yes, automation helps lower running costs
• Spend less on maintenance and staffing

4
Indicative performance range
5
The power of efficiency

• Savings p.a. with 20 efficiency difference
• Average annual savings over 15-year period, based
  on 10/GJ wood fuel price, 3 price inflation p.a.

6
Reduce fuel price inflation risk

• The higher the efficiency of your boiler, the
  lower the impact of fuel price inflation
• Table presents increase in cost per GJ of heat
  produced due to increases in the price of fuel

7
Modern combustion technology
Flue gas recirculation
Auto cleaning
Rotation air intake
90 efficiency
Low particle emissions
Burn back safety
Auto ash removal
Koeb PYROT commercial boiler
8
Fully automated fuel feeding
B
A
C
D
9
or the old-fashioned way
Hand-fed log hold
Self Cleaning
Low Emissions
Auto ash removal
Koeb log boiler
10
Chips vs Logs vs Pellets
11
Chips Managing water content

• Water content sampling upon delivery
• Use low-cost bucket device to sample water
  content of chips upon delivery, if buying on a
  /GJ basis
• In-built heat meter
• Measure heat produced by wood fuel burnt
• Suitable for high heat users

12
Decisions now have impact tomorrow

• Ability to use different types of wood fuel
• Take advantage of price differences between wood
  fuel types over time
• Ability to comply with more stringent air quality
  rules
• Particle reduction devices (bag filter,
  electrostatic precipitators) are very expensive
  to buy and maintain!
• Can the controls cope with change
• e.g. introduction of solar collectors, heat stores

13
The big dilemma

• Pay little now for old technology
• but pay substantially higher fuel outgoings for
  the next 20 years (low efficiency, appliance not
  designed to deal with different fuels)
• possibly face major additional investment to meet
  tightening environmental standards over life of
  boiler
• OR secure a futureproof solution
• World-class efficiency will lower long-term
  outgoings
• Modular controls enable integration with solar
  etc.
• Low emissions satisfy air quality regimes

14

• Thank you for your interest!

www.sparkenergy.co.nz