5270 - 4 inch Horizontal Model Boat/Marine Boiler

Regular price Int. price: $688.00
Incl. GST: $756.80

Tax included. Shipping calculated at checkout.

4" Horizontal Boiler: P/N 5270

- including Ceramic Burner, Safety Valve, Pressure Gauge & Boiler Test Certificate.

Overall Dimensions:

Total height 140 mm (5.51”)

Chimney height above barrel 110 mm  (4.33”)

Height to top of steam dome 150 mm (5.91”)
Total width 110 mm (4.33”)

Length including burner 205 mm (8.07”)

Length not including burner 150 mm (5.91)

Weight empty including burner 2.2 kg (77.6 oz)
Running time per fill @ 45 psi (approx) 20 min

Working pressure 45 psi (3 bar),
Test pressure 160 psi (11.05 bar)

Boiler fill (75% of space) 600.00ml approx.

Suitable for use with all “Miniature Steam” engines but necessary for maximum performance when powering “Miniature Steam” Mildura & Gem slide valve engines and steam plants using twin Clyde engines.

Generally suitable for any twin cylinder engine up to 19 mm bore including powering stationary steam engines (at scale speed) such as beam engines up to 1” bore x 2” stroke and horizontal mill engines up to 1-1/2” bore/ 1-1/2 stroke

Lagging Kit:
Each boiler is delivered with a wood lagging kit as shown plus fitting instructions

Materials Used

All "Miniature Steam” boilers are hand crafted from copper and copper alloys silver soldered together. Each boiler is hydraulically tested to more than twice its working pressure and comes complete with a test certificate. They have unique mounting systems that enables them to be mounted in any convenient location within the boat hull. The pressure gauge shown is standard for this boiler

 Design & Construction Standards:

“Miniature Steam”, boilers are built to the highest quality standards.
They comply. where appropriate, with the following design, construction and testing requirements of:
- Australian Standard AS 4343 Level E
Australian Miniature Boiler Safety Committee, (AMBSC) code part 3 Issue 1.0 - 2006 Sub-Miniature Boilers and AMBSC code part I . Issue 7 - 2001 
- UK Boiler Test Code 2018 – Volume 2 
Every aspect of the boilers has been carefully designed and rigorously tested to meet the highest possible steam generation performance. Each has been designed and manufactured by “Miniature Steam”, including the cast ceramic burner insert.