I think trying to push the Brewtus very far beyond its design limitations is not likely to lead to a happy result. The Brewtus ultimately runs into the limitations of the heater coils ... in the US, these are only about 950 watts, which can't continuously keep up with the potential draw if you open the steam valve up through a fat single hole or a multi-hole steam tip. Raising the temperature of a large block of water to about 234 degrees provides a steam service "buffer" whenever the pressure drops below 1.5 atmospheres in the boiler ... some of the water flashes into steam until the pressure rises to the max associated with that temperature. But as new water is introduced to the boiler, the average temperature of the water drops toward 211 and the overall pressure drops. I understand the logic of "more water in the boiler at the start means that adding 4 oz. will have less impact on the average temperature", but at some point, the system becomes hostage to how fast heat is introduced by the coil. For comparison, the heaters on the previous generation of little 4 oz Gaggia boilers were 1450 watts IIRC, while the other pro-sumer twin boiler machines are usually about 20% smaller in boiler volume than the Brewtus, but have heaters in the 1600 to 1800 watt range. Commercial machines have 3500 watt heaters on 220V 30 amp circuits to work with and the production is way beyond what runs in the US kitchen when the toaster and the microwave are on. You just are not going to be able to get that kind of steam volume from a Brewtus with tweaks. New boilers ... maybe, but not tweaks. KittJ
----- Original Message ----- From: "John Brinkman" <[EMAIL PROTECTED]> To: <[email protected]> Sent: Saturday, September 06, 2008 5:15 PM Subject: Re: Steam Boiler water level > > I think that the theory is that the more water in the boiler, the less > the temperature drop as new water is added. > Downside is that raise it too high and the steam becomes too wet. > > I have increased the pressure and it is running much better than > standard, I was just wondering if there were any other "tweaks" that > could give me a higher flow rate for a longer period. > > JohnB --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Brewtus" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/brewtus?hl=en -~----------~----~----~----~------~----~------~--~---
