Temperature sensor

Hi all

I am wanting to build a controller for a heating system, the pic I have
attached shows the temperature sensor part. The problem I have is that the only suitable thermistor that I can source is rated 100k not 33k as listed in the diagram. My question is what changes would I have to make to the other resistors to be able to use the 100k thermistor?

A1/2 are LM311 comparators
R18 & R20 are potentiometers

Many thanks for any help

Change R16 from 51K to 150k. When the 33K thermistor is 33K at some temperature the voltage at the junction of the thermistor and R16 will be
2 Volts. Putting a 100k thermistor in place of the 33K and a 150K resistor in place of R16 will accomplish the same.

Many thanks for your reply k7elp60. It is much appreciated