The rough estimation of Boiler Horsepower is 10 square feet of heating surface = 1 boiler horsepower. I have a 6 Horsepower Toledo Steam engine on Nyitra coupled with a boiler that has the following specs: 200psi MAWP 72 sq ft of heating surface 362 lbs/hr (ASME calculation) For me this seems to be ...

What is important is that your boiler should be a reasonable match with your engine, and your hull should have enough buoyancy and structure to support all of the weight of the steam machinery. Steam equipment is quite heavy. If you look at how many kg of all the equipment per horsepower, it is high...

The "50 years of Victory" is the Ships name, after 50 years that has transpired since the end of World War II. '50 Years of Victory' (50 лет Победы / 50 Let Pobedy) is the largest and most powerful icebreaker in the world. She is an engineering marvel and is powered by 2 nuclear reactors that produc...

The Amish don't use electricity, or zippers, automobiles, trucks, etc, and I don't know any who do metal fabrication as a business, although many of this group make horse buggy wheels for sale. The Amish are very complicated. On the East Coast the best traction engine boiler fabrication is Jonas St...

This is the thread for the 2.5mm nozzle I am using: https://thesteamboatingforum.net/forum/viewtopic.php?f=8&t=2274 The 2.5mm nozzle is made of brass and stainless steel. The center bore is 2.5mm. It was designed for air, I replaced the O-ring with a steam rated Viton O-ring. Heavy Oil Waste Oil Alc...

Fred, The exact one I have ordered is this model McMasterCarr Catalog #: 47345K32 - 40 to 110psi model https://www.mcmaster.com/47345K32/ It is 3/8" npt inlet and outlet. My thinking behind this it might be able to support up to two atomizing nozzles in the future. Right now I have one nozzle and ab...

On a recent outing in June we ran Nyitra on a combination of propane, kerosene, and some wood. The 2.5mm steam atomizer worked ok, but it was finicky. As the boiler pressure changed it would require adjustment. I saw a recent post by RNoe where part of the oil atomizing rig appears to have some kind...

If you are going to mention vertical boilers, don't forget the Manning Vertical FireTube boiler. Nyitra's ASME Boiler is inspired by the Manning VFT Factory boilers that had a wider diameter in the firebox area at the bottom.

-CB

I put a small fitting on my boiler's bonnet that goes via a long copper pipe to a Magna-Helic Gauge, measuring -1 to 1 inch pressure of H2O. I installed it so the fireman could notice changes in air movement through the boiler. The stack is now 5ft+bonnet which helps the draft naturally. There is ma...

For reference I have used a few belts. I highly recommend Gates PowerGrip GT4. I have not had one break on the water. I know of at least one person in England who is running a geared belt. This is what I use... https://www.mcmaster.com/6486K651 Mcmaster Catalog# 6486K651 High-Strength HTD Timing Bel...