But i heard heat pumps are not very efficient  in very  low  cold temperatures.  

My dinner is getting cold.)

These are some turn key slolutions.https://www.yellowletters.com/...https://audantic.com/https://reivault.com/Other methods are as follows:You can purchase lists with different motivations like absentee owners, high equity, 60-90-120 days late on mortgage, pre-foreclosure, delinquent taxes, water cutoff, code violation, evictions, probate, divorce, etc. and mail or cold call.Other methods are driving for dollars, door knocking, wholesalers, craigslist, Realtors, FSBO sites, expired listings, put out bandit signs, billboards, newspapers, other offline publications.You can use pay per click/adwords, website with SEO, facebook, Linkedin, Youtube, and other forms of online and social media marketing.If you have a big budget you can do radio, TV and billboards.

Is it better to network with wholesalers or go ahead and find lists yourself to cold call, text, direct mail, etc?

Lost payments, delays, and 6 guys 4 hours of moving and cleaning of the house.I'm not bitter and definitely applaud it from the wholesaler side.

It is plugged in and cold refrigerator/freezer. 

I have a C- class multi family home in Philadelphia  .... previous owner had trouble with tenants never paying the gas bill ... so liens were placed on home.... he said I should def. go electric (baseboard) and keep gas for cooking... but philly gets sooooo cold!

There is a circle of service provider for wholesalers:  website providers, list providers, robo call providers, cold call providers, databases managers, direct mail providers - they all have podcasts and they all invite their friends in this circle to be on these podcasts and webinars and the like,  They are also have conventions - and they are all referring themselves and telling everyone they need to scale up, that you need to spend $10,000 a month on marketing (if you use all these tools yes you do) so you can get very rich in this business.Sorry to break the bubble folks, figure out how to do deals, figure out what a good deal is and focus on good deals. 

If you do the heating wire you may want to upgrade that section of pipe to plastic piping which won't attract as much cold as metal pipes.

We met with a lot of the "bigger" brokers but the vibe we got from them was that we would be doing a lot of cold calling using their scripts until we got our name out there.