Indoor Greenhouse Help

Hey everyone!

I’m converting my furnace room into a small indoor greenhouse and would love some help figuring out:

• The best layout for shelving/tables/lights
• Cheap but effective lighting options
• How to keep things safe around the furnace and tank

I’ve attached photos A to D with colored lines showing the measurements (in inches) so you can get a sense of the space.

Room purpose:
Year-round growing with a super tight budget, mainly veggies and herbs.

Current grow list:

• Roma & grape tomatoes
• Sweet peppers (yellow + orange)
• Herbs: basil, oregano, parsley, cilantro, catnip
• Beans
• Possibly zucchini or strawberries if there’s space

I’m open to other easy or high-yield indoor crops people recommend for a setup like this.

What I need help with:

• Budget lighting ideas (LED shop lights, clamp lights, etc.)
• Whether shelves or tables make more sense for airflow & maintenance
• How to handle humidity and furnace safety
• Creative layout ideas using what’s already in the room

If anyone wants to sketch or mock up a layout suggestion, I’d love that too.
Thanks in advance for any help or photos of similar setups!

Photo A Measurements –
Green: 24 inch
Yellow: 48 inch
Red: 82 inch
Blue: 52.5 inch
Pink: 16.5 inch

Photo B Measurements –
Yellow: 44 inch
Red: 71 inch

Photo C Measurements –
Pink: 91 inch
Green: 23 inch
Red: 72 inch
Yellow: 41 inch

Photo D Measurements –
Red:, 47 inch
Blue: 91 inch
Green: 16 inch
Pink: 2 inch
Yellow: 24.5 inch