I don't have any small space heaters handy, they are in our RV, and I don't have an incandescent work light. But I did manage to find a small desk light and a 60 watt incandescent bulb downstairs and wedged it into the equipment bay.Put a small space heater or shop light with an old school incandescent bulb in the equipment bay and put the side back on.
Water is still warm. Forecasted low is down to 25 now. Pump should arrive Wed, got a shipping notice late this afternoon.