A cold night and no electric?

A Catalytic Heater is of great value in this situation because there is no blower requiring electric or battery.  A penetrating soft infrared heat from low pressure LP gas works efficiently to heat up the room.  For those cold days this heater will maintain consistent heat with the occasional cycling of the main heater to maintain the water lines and basement heat. 

Catalytic heater and combustion - are they safe?

I have tested my catalytic heater more than once by holding a piece of paper against the element. It will turn black but not burn.
Here is some information I gleaned from the web:

Catalytic combustion takes place in the panel of the heater at a low temperature, only 350-400º C, and no flame is produced during combustion.

Excerpt from a Science question:

Just to be clear, I will define ignition temperature and flash point; both of these may be considered “combustion temperature.” I would lean toward ignition temperature.

Ignition temperature (also autoignition temperature) – The lowest temperature at which a material, when heated in air, will spontaneously ignite from the heat of oxidation in the absence of any other source of ignition energy.

Flash point – The lowest temperature at which flammable gas given off from a material heated in air is ignited with external ignition energy when the density of the evolved flammable gas has reached the combustion limit.

The ignition temperature for paper is reported to be 450 oC (842 oF), and the flash point of paper is estimated to be 350 oC (662 oF). The reference for all of this information is the Handbook of Physical and Mechanical Testing of Paper and Paperboard Volume 2; Edited by Richard Mark.

Caution for Freezing Weather

Be sure to run your LP Furnace if temps will drop to below freezing, and don't forget to bring in your water hose if it is not heated.