Re: Anyones Giotto & other HX Modifications
Re: the Sirai p/stat Luca....
I think its gained a reputation for "desirability" because of its general open design and solidity that, in turn, lends itself to simple ongoing maintenance. Its design though, does not lend itself to producing a tight dead-band or low hysteresis; if this is considered important...
Im with you as it happens, currently own one machine with a Sirai and the other fitted with a Mater XP700.... The Mater exhibits excellent control of the Boiler pressure with a hysteresis of less than 0.1 Bar and a resulting temperature differential envelope in the Boiler of roughly 1.5C. An excellent result in any terms.... 8-)
As you touched on elsewhere, a low hysteresis p/stat in combination with a suitable SSR to switch the actual heating element(s) current, would be a very reliable and almost maintenance free proposition. Coupled with relative simplicity as a retrofit, its something worth considering too.
Mal.
Re: the Sirai p/stat Luca....
I think its gained a reputation for "desirability" because of its general open design and solidity that, in turn, lends itself to simple ongoing maintenance. Its design though, does not lend itself to producing a tight dead-band or low hysteresis; if this is considered important...
Im with you as it happens, currently own one machine with a Sirai and the other fitted with a Mater XP700.... The Mater exhibits excellent control of the Boiler pressure with a hysteresis of less than 0.1 Bar and a resulting temperature differential envelope in the Boiler of roughly 1.5C. An excellent result in any terms.... 8-)
As you touched on elsewhere, a low hysteresis p/stat in combination with a suitable SSR to switch the actual heating element(s) current, would be a very reliable and almost maintenance free proposition. Coupled with relative simplicity as a retrofit, its something worth considering too.
Mal.

)
), and the output water varies in temperature almost as much as the input water temperature varies throughout the year.
Comment