Wood Log Boiler

Smart-HV
23 kW

78,500 BTU/h
Compact size & functionality

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Filling chamber size for 1/2 metre log
Sophisticated wood gasification technology
Smoke-free refilling
Smart-Touch screen
Easy filling
Manual cleaning

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price-performance miracle

Ideal for switching to affordable heating costs

The Smart-HV impresses with its compact size, its functionality and of course its excellent price-performance ratio. It has a filling space for ½ metre logs matched to its capacity. The sophisticated gasification technology comes from its exclusive brother – the Neo-HV. Its easy-to-use touch display gives it a special touch. The Smart-HV is particularly suitable for use with rather low power requirements, such as detached houses and small residential units.
The Smart-HV 23 log boiler is also available as a wood log pellet combi boiler.

Benefits: Smart-HV 23 kW

Optimum filling chamber size for 1/2 metre log pieces (up to 530 mm length)
Easy to use touch display
Sophisticated wood gasification technology
Highest efficiency
Easy stoking through large stoking door
Smoke-free top-up thanks to carbonisation gas extraction
Full refractory-lined high-performance combustion chamber
Speed controlled 'energy-saving' exhaust fan
Lambda control with autom. calorific value detection
Automatic primary and secondary air control
Easy de-ashing into the ash pan at the bottom
Cleaning set included
Latest combustion controller for highest efficiency and lowest emissions
Returm & accumulator control
Fully cased and wired - easy installation
Energy efficiency class A++
5-year warranty
Particle separator optional

Our boilers in detail

Specifics
of Smart-HV 23 kW

Smart wood log boiler in 3D

Discover the compact Smart-HV 23 kW from its best side and in 3D. Move the boiler in all directions as desired.

This affordable solution for detached and weekend houses can also be discovered in 3D – right now on the screen. Use the AR button and place the smart wood log boiler using your fingers and mobile phone or tablet. Rotate and scale to get an accurate picture of how the Smart-HV 23 kW can be perfectly integrated into your room situation.

All technical details and important components can be found in the following sectional drawing.

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Large filling door
Filling chamber for 1/2 metre logs (up to 530 mm)
Combustion chamber lining – prevents tar formation
Primary air motor
Secondary air motor
High-quality, massive refractory-lined combustion chamber
High-temperature burnout zone
Ash separation zone
Lambda sensor
Turbulators
Heat exchanger
Manual boiler cleaning system
Exhaust fan
Top smoulder gas vent
Optional back-end protection
Cooling coil for thermal safety circuit
Cleaning door
Ash pan

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Schnittbild vom Stückholzkessel Smart-HV 17–23 kW | Hargassner

Technical
details

Nominal capacity (NC)

Fuel heat output

Minimum capacity

Electric capacity

Heating value Efficiency/NC

Heating value Efficiency/30% NC

Fuel efficiency in NC

Fuel efficiency in 30% NC

Seasonal energy effiency ETAs

Boiler temperature range

Measures (w x h x d)

Weight

Filling volume

Space requirement

Flue pipe diameter

Ash box volume

Water content

Flow/Return

Energy label

Unit

kW

%

°C

mm

kg

l

m²

mm

l

"

Smart-HV 23

Nominal capacity (NC) 23 kW

Fuel heat output 24,5 kW

Minimum capacity 15,1 kW

Electric capacity - kW

NCV efficiency at nominal output (nn) in % 93,7 %

NCV efficiency at 30 % nominal output (np) 94,3 %

Fuel efficiency in NC 86,1 %

Fuel efficiency in 30% NC 86,5 %

Seasonal energy effiency ETAs 83 %

Boiler temperature range 78 °C

Measures (w x h x d) 655 x 1290 x 970 mm

Weight 400 kg

Filling volume 102 l

Space requirement 0,54 m²

Flue pipe diameter 130 mm

Ash box volume - l

Water content 72 l

Flow/Return 6/4 "

Energy label A++

NCV = Net Calorific Value | GCV = Gross Calorific Value
max. operation temperature 95 °C | max. operating pressure 3 bar | electrical supply 230 V AC, 50 Hz, 13 A fuse protection

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