Airtight old door?

[junglejim]

This is probably a contradiction I suspect everyone will say “buy new” but…

I’ve got an old 1920s front door that we love and would like to use on our new timber frame build. We’re going as airtight and insulated as we can so this door is obviously a weak point but I’m wondering if there are solutions out there so that we can make the door as airtight as possible? 🤞🤞

[ectoplasmosis]

We just did this to a Victorian front door on our ~1890 house. 
 

- Replaced glazing with laminated double glazed units, 24mm warm edge spacer, argon filled. Sealed properly. 
 

- Replaced the timber door frame with a replica hardwood frame, with Schlegel AQ21 seal channels routed in along all three frame edges; AQ21 seals fitted around all 4x latch keeps. 

- Fitted a routed-in Norseal NOR810 automatic drop-down seal along the bottom edge of the door

 

We also fitted a GU Secury multi-point auto-latch lock system, which uses a single Euro cylinder so no keyholes to let air in. 

[TheMitchells]

Hoping you dont mind a similar question on your post. 

 

We have a very poorly fitting UPVC door which leaks lots of heat,mainly at the top and bottom, we can see daylight through the top! It was built in 2002 when we had the garage and utility built on the side of the house.  I dont think it was a very good one but was okay initially.  We dont heat the utility room as it would be a waste of time, but we are trying to make changes to improve the temperatures in there. 

Would the recommended advice be to repair/mend or replace witha new one.

Is there something we can do to improve the seals?  If so, what? thanks.