To spark or not to spark

[ruud-man]

Why do some manufacturers use HSI while others use DSI?

I should think the DSI would be less troublesome than HSI.

I just can't think of an advantage of HSI unless it is cost.

Thanks...

[docholiday]

Is there an echo in here? Been asking the same question with the same results. All I hear is HSI is getting better but even at it's best its not as reliable. I do suspect that it may because the HSI has no sound and you have to keep your parts department in business.

[BaldLoonie]

People can spout about SiNi all they want. We've replaced plenty of the little Nortons in our Air Ease 120V version and also in the 80v models American-Standard uses. Glad our salesman put extended warranties on our sales! I get to bill Equiguard $200 every time one fails! :)

I think our record on oldest ignitor is 18 years, on an old Preway 90. But Steve found a 14 year old silicon carbide on a blue oval this week still working...barely!