# Building heat recovery and Copper

Their prices have moved together.

Source page: https://www.materialinsights.org/links/building-heat-recovery-and-copper/

[Building heat recovery](https://www.materialinsights.org/energy/e_building_recovery/) (energy) and [Copper](https://www.materialinsights.org/commodities/copper/) (commodity): 1 relationship.

## How they are linked

### 1. Price link: coils and pipes

*Cost and price · Weak · Both ways*

Drain-water heat recovery units and heat-pump water heaters use copper pipe and coils. The equipment index shows correlations close to zero with copper, because makers smooth metal costs through contracts.

- **-0.02** monthly change correlation
- **-0.06** 12-month change correlation
- **0.52** fitted elasticity

Built from the site data on production routes, energy flows, industry value chains, input-output tables and prices.