With the 8Kw stand-alone version, I will be installing it through a caravan floor made of plywood. Other heaters I have installed (Eberspacher) have a special mount for wood floors which includes a steel colar that looks like a cut off piece of 90mm pipe. Does the Vevor heater come with the attachment needed to install through a wood floor to further protect the wood from getting too hot and being a fire risk? Eberspacher have a floor mount for both wood and steel. The wood version has the colar