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Solahart Inline Gas Booster System
The Inline Gas Booster system is suitable for frost areas but not suitable for harsh water regionsˆ.
This water heater is suitable for outdoor installation only. This water heater is not suitable for use with a
solar water heater without an over temperature protection system unless a solar transfer valve is installed.
Inline Gas Booster

Inline Gas Booster - 20 litre

Model

20

27

Part no natural gas

PN

10143204

10143274

propane gas

PN

10143205

10143275

stars

6

6

Moderate climate

2

3

Cool climate

1

2.5

Gas Energy Rating
No. of Bathrooms
Min. operating flow rate

L/min

2.5

2.0

Thermal input

MJ/h

153

205

L/min @ 40°C rise

12.5

16.7

L/min @ 25°C rise

20

27

Heating rate
Weight

kg

18

24

Height

mm

592

669

Width

mm

350

351

Depth

mm

164

227

standard

standard

Frost protection
Gas connection

R ¾ / 20

R ¾ / 20

Gas pressure maximum

kPa

3.5

3.5

minimum - natural

kPa

1.13

1.13

minimum - propane

kPa

2.75

2.75

240V

240V

Electricity supply*

Inline Gas Booster - 27 litre

*A weatherproof general power outlet (GPO) is required within 1.2m of the inline gas booster.

Accessories - Optional
20

dimension drawing 01 numbered - continuous flow gas water heater 873 874 876 series 012 to 020 models - SK6384 rev AD.doc

27

Recess box (galvanised finish)

PN

299842

299831

Pipe cover (powder coated)

PN

299838

299830*

Security Cage

PN

299867

299867

Wall mount security kit

PN

299868

299868

* 299830 is supplied in an antique white finish only.

Water Supply
Relief valve setting

kPa

1750

psi

255

Max. supply pressure*

kPa

1000

psi

145

Min. supply pressure**

kPa

140

psi

20

Water Connections
(inline gas booster)

inlet

R ¾ / 20

outlet

R ¾ / 20

* Maximum water supply pressure of solar preheater may be less than for the inline gas booster.
**Minimum water supply pressure required to achieve the rated flow.

Power Consumption
Component

20

27

Burner on, anti frost device inactive

Watts

61

80

Burner on, anti frost device active

Watts

151

175

The water heater will only operate on an electricity supply with a sine wave at 50Hz. Devices
generating a square wave or a lower frequency cannot be used to supply power to the water heater.

Technical data is subject to change.

ˆH
 arsh water regions - the Solahart warranty will not apply to the inline gas booster heat exchanger if it is connected
to a water supply which: is scaling with a Saturation Index > +0.8, or: is corrosive with a Saturation Index < -1.0.
Solahart Australia Tel: [phone] • www.solahart.com.au
Solahart International Tel: [phone] • www.solahart.com
SH970IGB - 2013 January

Reorder: SHB/2027GB

SH970IGB - March 2013

dimension drawing 01 numbered - continuous flow gas water heater 87 series 024 027 models - SK6668-1 rev AD.doc

2/11/201