Harman Accentra

On my third season with original igniter so I may have some experience soon but I purchased my spare from
http://www.stove-parts-unlimited.com/
Fast delivery and friendly in my experaince.

you can google the ignitor by part number - the part number is listed in your manual

My ignitor went after 4-5 years, and I didn't bother replacing it. I find the Accentra is easy to light by hand.

When I dump the pellets into the stove, I leave the last cup or two in the bag I then shake the lot over a bucket to get the fines out. The remaining pellets go into the hopper. The fines I use to help me light the stove.

I take a used dinner napkin ('Dinner' napkins are heavier, better quality. we use them 1-2 times a week, so there is ready supply)
I roll a handful of fines into it (like a cigar)
I fill the burn pot halfway with pellets, then I put in the napking tube (I usually have to bend it in half to get it to fit)
I put another pinch of fines on top of this
Then I cover everything except the tip of the napkin with pellets.

Light with match.
Usually only takes 1 match to get it going. - the fire eats its way down the napkin and under the pellets, where it slowly spreads to the fines & rest of the paper. After a couple of minutes of smoldering, it will ignite.

or you could just use a bernzamatic torch or similar device

I'm not sure he wants to manually light his stove he asked where he could get a new igniter and how to install

Stove parts unlimited good call,good to deal with.Will have to get to back of unit for wire connections.Not really a big deal,but I am a mechanic.