Our Regency I3100 sits inside a mfg fireplace which is inside a full cinder block chase which runs from basement to roofline. The total depth from front of the brick (front of insert)to the back of the cinder block is approx 48". The backside is our kitchen which has strapping and drywall forming some pantry cupboards in our kitchen. The insert uses a full 6" stainless liner in the original masonry chimney. Now that I have an IR thermometer, I was checking the temp of the drywall inside the cupboards, and at the hottest part it runs about 125-129 F. Apart from melting the peanut butter in the cupboard is this too hot?