at risk of hijacking this thread, how much difference would an in line heater make to the cleaning process when using a good machine, ie a storm or a jag, compared to using these machines without an inline heater, but having hot water in the rinse tank, as well as hot water when mixing the pre spray??? i think im right in saying the cost of a new magma from cleansmart is somewhere north of £500, i dont mind paying that and have indeed thought of getting one earlier in the year BUT is the difference significant, in other words is it £500 worth of difference to the day to day cleaning process???