a great value for so many tasks! Easy to use, plenty of air or heat or both and enough light to see fine by alone. I had one ruined by filthy tenants and by buying this unit here it was less than buying just the defective heaterI just popped out the modular components and replaced all without any ceiling or plaster work as the housing was identicala nice quality addition. Quiet, good mist clearing, and toastywhat more could you ask? Add free shipping from Amazon and sold American!The vent in our bathroom died recently, so seeing that it was a Nutone 665, I ordered this unit, assuming it would be easy to pull the old one out and replace it with this. Unfortunately, the housing has been redesigned for the worse. The old unit did indeed slide out very easily, leaving its hanger bars in the space above the ceiling. The new unit requires you to attach the hanger bars to the housing before installing it. Furthermore, the old unit had an opening for the power to come into the unit where the connections were light, vent, and heat were made. The new unit has these connections outside the housing.
Basically, I had to cut open a larger hole in the ceiling to allow for the hanger bars and give me space to hammer them in. The grille is barely larger than the housing, so now I have an ugly space surrounding the unit in the bathroom ceiling.
If they hadn't changed the design, I could have reconnected the power, slid the unit in, and hung it on the old hanger bars and written a 5-star review. The new design makes it much harder to install in a finished bathroom and I see no reason why it was changed. The old unit's design was far superior. If I fix the drywall and this unit dies, I'll have to cut the ceiling again to get it out. I'd rather just leave the hole and find some kind of frame to fit around the grille to hide the hole. We had a 25 year old version of the same heat/vent/light which was still, amazingly, working. It was a bear to get down, but once we did, the new one installed easily in the same space. It's much quieter, heats the space more quickly, and looks great -the old one's grill had turned a murky yellow-orange and the light visor was bubbled. It's nice that we could get a similar but improved model that used the same sized hole.I just purchased my home, where the previous owner had installed one of these in two bathrooms. One week later, within 24 hours, BOTH heaters broke. Since the whole thing is $80, and a new heating module is just a little less, I purchased this for the heater and for spare parts. I opened it up and the new heater module looked different from the old version. I called Nutone, and it turns out that even though the heater is modified, it still works with the old base. They emailed me a 1 page instruction sheet. Swapping the heater was straightforward, just two screws.
I hope the updated heater will be a little more robust. Time will tell, but $80 for the whole thing is a good deal. The individual components are overpriced.
EDIT: If replacing the heating unit in another unit already installed in the ceiling, you need 3 hands minimum: 1 to hold up the (heavy) heater, 1 to hold the screw which is IMPOSSIBLE to start by hand, and one hand to rig whatever crazy contraption you have to get access to the screw, shielded by a second piece of metal with a hole EXACTLY AS BIG AS THE SCREWHEAD, NO BIGGER so your screwdriver shaft won't actually fit through. I would have a few choice words to the designer who made the heater such a bitch to replace for no obvious reason.I went almost a year with no exhaust fan in my 1/2 bath because the heater died, then the exhaust fan went. My home is old & I purchased it several years ago. I didn't think I could get one just like it, but this was the same as the old one, but easier to install. The electrical components were better! Great product! Hopefully won't need another any time soon.
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