First-Floor Bathroom Heating and HVAC System Information, help and advice on many architecture, self build and design problems and issues

[Jeff_V]

Hope you'll help me with your thoughts. The bathroom of the house is on the first floor with quite a big window (the wind is noticeable). During the autumn/winter seasons, it gets cold in there. Wall insulation did not help, any other methods? The problem is the room is not a part of a house HVAC system. Please, I'll appreciate any advice.

[Jeff_V]

Upd. Solved the problem, purchased a wall-mount heater and insulated all the space near the window

[B4Less]

This is tricky because it sounds like the heat is mainly escaping through the large window. Installing a new window with extra glazing would help but very costly. If the roof above the bathroom isn't well insulated this could also be causing an issue. Thick thermal curtains may also provide some help.