I have a Heat & Glo fireplace that has the IPI technology in it. The unit works great in the spring and summer but in the winter when our temperatures can dip as low as -40 and we turn the unit on, ice is forming under the unit and then melting on the electronics which then fries them. The dealer has been told by Heat & Glo that they have never heard of this. The chase that this unit is installed in is Insulated, Drywalled and vapour barriered and yet we are still shorting out controls. Anyone else seeing this and if so how did you fix it?