I am in South Africa so I have a bigger element :-) but I here what you are saying.
JohnB On Sun, Sep 7, 2008 at 12:51 AM, Kitt Johnson <[EMAIL PROTECTED]> wrote: > > 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 -~----------~----~----~----~------~----~------~--~---
