Philips used the name "infraphil" for their red tinted heat bulbs. They were supposed to have health benefits, like curing aches and pains. You can still buy them new.
https://www.philips.co.uk/c-p/HP3616...-infrared-lamp
There's a website about the vintage Infraphil lamps :
http://www.infraphil.info
I used to see a lot of those old sun lamps at the dump, 10 - 15 years ago.
As for the white light + heat bulbs, they're still in use at my Mum's house. Her father used to have one in his bathroom, so she followed suit. The heat bulbs are quite effective if you stand directly underneath them. They last a long time (up to 10 years) but are quite expensive to buy and run. Also, ordinary lampholders are not designed for 250 watt bulbs. Eventually the lampholder becomes brittle due to the heat.
The round heat and light fittings : my parents had one in the 1970s but being permanently wired in to the ceiling, it was left behind when they moved house. See this thread:
https://www.vintage-radio.net/forum/...t=88409&page=2
I acquired a similar heater (from the dump!) but couldn't install it due to a lack of earth connection at the bathroom light fitting. The plug-in bulbs are a simple solution - nothing to install.
Oh, and the copper bowl heater! A fascinating design. I remember seeing one many years ago, with a bayonet cap mains connector for plugging into the bathroom light fitting (dangerous - but I wanted one!). Last year I acquired one from a table top sale at the Wireless Museum in Dulwich. Complete with crumbly cloth-covered flex (no earth wire for added danger) and heating element consisting of exposed wire coiled around a ceramic block. The element has a standard edison screw base. It uses 550 watts as measured by me. In theory, it could be connected to a light fitting, although I wouldn't. However I couldn't resist powering it up, via a safeblock. See attached picture of the result.