provide make, model and serial number to mfr.'s tech support and they can advise if conversion is allowed and provide parts. Simple standing pilots such as on vented gas logs usually burn about 600-800 BTU/hr., Quick dropout pilots with a thermocouple and thermopile, such as with gas direct vents usually burn ~1,200 BTU/hr. Ventfree ODS pilots burn about 1,600 BTU/hr.
Keep the fire in the fireplace.