Yeah, it's not a Grandma. It's the 525 pound Insert I told you it was by the front picture when I sent you the manual.
If you have the first eBay message I sent, I was correct in identifying it. It reads;
You have a
Fisher Fireplace Insert. Grandma Bear is a freestanding stove with 4 legs. This Insert does use Grandma III doors.
Heating capacity is approx. 1750 sf or "up to 2000 sf" depending on original literature used.
Weight is actually 525 lbs with bricks installed.
IF you have an original Fisher blower it should be pictured since there are a few styles (bottom or sides) and many are quite rare demanding a premium today.
Here is the manual giving you the model name on cover; It can be printed and is required for installation in most jurisdictions requiring UL listed appliances.
https://www.hearth.com/images/uploads/fishinsertmanual.pdf
You have the
bottom blower style.
View attachment 184603 View attachment 184604 (hand painted doors are not original)
pdf below is the Insert Blower Instructions that came with your blower accessory.
Your insert has NO rise like a freestanding Fisher Stove. The firebox top is flat (same height front to back). The rear half has a secondary outer box built over the firebox for convection heat to be removed by the blower. It blows into the slot under ash fender and out the top.
What you call back legs are leveling feet. The Insert has no legs.